Lab report

Guiding Question: How does concentration of a solution affect the rate of the reaction?

Hypothesis: 

I think that what ever substance you are using will have a chemical reaction. for example some liquids might start bubbling, changing color or might even evaporate.

Variables: 

- Control: The amount of water and aluminium foil

- manipulated: The amount of Copper sulfate added to the water

- response: I want to see what would happen to the aluminium foil and when i change the concentration of Copper sulfate  

exploration: 

materials: baby food jars, spoon, CuSO4, water, balance scale, morter and pastel, graduated cilinder, goggles, test tube or beaker and aluminum foil

Cash In Exchange For Good Grades? Hmm . . .

By: Meera Dolasia 

Source: Web

11/26/2011

Have some school decided to give cash to do well in tests? Indeed they have. In several school in Virginia Beach, they have tested students to see what would happen, the result where quite encouraging. But this cash is not offered to kids in every grade. Only high school students who are motivated enough to enroll for AP (Advanced Placement) courses, take the test. Also, not everyone who takes the test will get the money, only students with a score 3 and above, being 5 the highest. Only those are rewarded. Even if $100USD seems a lot, most of id is used for paying to take the exams. The students usually end up with about $20USD per test. Even if this might seem a bit stupid it still seems to be working. 

I think that this is really cool and does encourage students to work better, but on the other hand the money they get also encourages them to buy foolish things and do bad things in school. I think this would help the teachers in many ways to get students to study and to be payed more. The more the Students get better in school, the more people will here about it, and the more parents will put their children in the school.

Octopus use coconut shells as mobile home and armor

By: Meera Dolasia 

source: web

10/28/2011

Most of the people think that octopuses are boring eight legged species, that spend its day wriggling around with its snake-like arms. However they do not know that this animal is very intelligent and is known to be able to go through mazes and try to escape from tanks. Octopuses are one of the 20 most intelligent animals with similar skills. Researchers had more than 500 dives between 1998 and 2008 in the islands of Northern Sulawesi and Bali to observe the behavior of twenty Veined Octopuses. Their discoveries where amazing! These octopuses would search for discarded coconut shells that where bigger than their 3 inch wide bodies. When they would discover one, they would use it to hide and as a lookout pint for predators or as a nice secure home. 

I think this is really cool that octopuses are so intelligent. I really think that they would be able to hide from predators and so on. They hold on to the coconut and walk around instead of leaving it behind. These creatures are very interesting and fun to watch!

Flying car is one step closer to lift off!

Flying car is one step closer to lift off!

By: Meera Dolasia

Source: web

07/02/2010

Engineers have been working on future models of all kinds of things. They are trying to make them lighter and easier to use. They have just put in a button into this vehicle, which switches it from a two-seat car into a aircraft in about 15 seconds. The wings simply fold in or open out depending on what the driver wants. Unlike other airplanes it runs on unleaded fuel, so it can be refueled at any normal gas station.

It is fitted with a 100 horsepower engine, it can fly the distance of 500 miles on a single tank of gas and drives at a speed up to 115 mph. However the company had a hard time fulfilling all the safety regulations whilst to maintain the vehicle's weight under the requires 1,320lbs. 

I think that this is much better than having a car, or being in an airplane knowing that an airplane wight tons more. This would be much better to have in the future because you can buy one and fill it up with gas easily and instead of using an airplane which pollutes the air and cars too, u can have one that doesn't do that as much as an airplane. Wouldn't it be cool if you or your parents had one of these? They could fly you to school! 

Current event- Is this the helicopter of the future?

Is this The Helicopter of the Future?

By: Meera Dolasia 

Source: web

11/12/2011

Every few years engineers come up with new inventions that hey believe will be transportation of the future. There where jet-packs, the flying car and now the first remote controlled helicopter. This is made of eco- friendly particles, there is a yoga ball under the driver's seat. It has sixteen propellers that enables it to lift of and land similar like a helicopter. It is much easier to fly then a normal helicopter and much safer. If something went wrong it would still land safely even if it up to four out of sixteen propellers, and since their are no propellers on top, it can be easily fitted with a safety parachute. It weighs about 176 pounds (80 kilograms), it is said to be a really light vehicle in most countries, meaning that the user dose not have to be a licensed pilot. It can only stay up for half an hour till its battery runs out. Wouldn't it be cool to have this to go to school or even to work! 

I think this would be really cool to have in the future or even now, but it can only hold one passenger. However it is eco-friendly and does not take up fuel, and it is not likely to fall and to get injured. 

current event- Why ants never lose their way

Why ants never lose their way

By Meera Dolasia 

source: web

10/31/2011

Researchers believe that ants always know where they are going and never seem to lose their way. The Technical University of Munich and Brazilian Center for Physics Research believe that they might have the answer. The say it has all to do with their in-build GPS system.  A scientist studied the behavior of  termite ants using sophisticated microscopes. They say that just like human-build GPS systems, they have magnets build into their antennas which help them navigate. While we rely on on huge expensive satellites, ants get their magnetic navigation from the minerals in the soil and the earth's magnetic field. The scientists say that while they are walking around, tiny mineral particles like iron oxide from the soil get stuck to their antennas. 

I believe this makes sense because ive played with ants before when i was small, and i would pick it up and out it in the grass and watch it, but it always seemed to go back the sane way where i had found the ant. 

http://dogonews.com/2011/10/31/why-ants-never-lose-their-way

Where's the Evidence?

Title of the Lab:  Where's the Evidence?

The guiding question:  What are some signs that a chemical reaction has taken place?

Your hypothesis: I think that in each substance there will be a different chemical reaction. Some might be hotter, some my become colder. Maybe even one might overflow. Some of the substances might even change colors.

List of the Materials used: 
-Substances
-goggles
- tubes


Data Table with ALL observations: 

Analysis of your results.  I thought that some of the reactions might explode. One of them just over flowed and the others either got hotter or changed colors. The way i knew that the reaction was over was, one of the substances had bubbles and after it sopped bubbling i knew it was over. After one of the liquids over flowed i knew it couldn't react anymore.  

Conclusion: Some signs that showed me that the reaction had started was smoke/heat, color changing, bubbling and so on. Some of the experiments did overflow and some did change color. I think one new substance was formed from all the experiments we did. I think that all the reactions did come to an end, i just don't know because i wasn't in class after the bubbling was still going on.  

Further Inquiry:  I think that we should have done something more exiting in class, like the elephant toothpaste. I still wonder what would have happened if we added heat to all of the experiments above. 

Evidence of a Chemical reaction

In this video i observed that the water was turning yellow, then from the bottom of the tablet red stuff came out and the water turned red.

 

In this video the Lithium does not explode in the water but the piece goes around the bowl like a tiny fireball.  

In this video When he/she puts the Cesium in the water it sounds like if it explodes.

In this video The potassium is dropped in the water, and goes around the bowl and explodes after a few seconds. 

I think this video is really cool. The sodium and potassium are thrown in the water and spins around and then has a big explosion.

I noticed that the reaction is slow, but when it start s to overflow the liquid also starts to turn black, and smoke comes out from the top making me think that its hot.

The gummy bear just melts, and the tube also stays really hot.

I don't really understand the effect in this one, but i did notice that when the salt crystals are added something is twirling in the water and making a pretty design. 

My Choice

I think this is so cool. I love how in the first one it comes out so slow, and in the second one i was not expecting it to come out shooting like that. I notice that the Elephant toothpaste also has some kind of heat in it.

Prezi link to Element Mg

http://prezi.com/3q4yofsekkfz/element-mg/ 

Silly puddy reflection

When we started the silly puddy experiment i noticed that u had to keep adding either baking powder, water, glue or acid. I had noticed that my silly puddy came out of the cup just fine because i added the right amount of ingredients to make it, as i looked at the others in class, i noticed several having trouble, some asked me how i got it out and i said i just added more acid. I like how the ingredients interact with each other and make the silly puddy, but i was sacred that i would forget to was my hands after playing with it, because Mrs. L had said you could get a stomach ake if you don't wash your hands and put it in your mouth. I liked this experiment because we got to keep the silly puddy afterwards. :) 

Current event # 4

San Diego's Ocean Glows In The Dark!

The oceans surrounding the coastal of San Diego, California are know as warm, crystal clear. People have noticed that there are blue electrifying streaks that light up the oceans at night, it is not a sign of aliens landing but a phenomenon called Red Tides, which occurs along the California coast and many other part in the world. This only happens when a certain species of a tiny microscopic organism known as phytoplankton becomes dominated with the ocean. These tiny organisms don't light up during the day. In the day they make the blue ocean waters into a very murky red, brown or purple color. However in the night the water becomes magical with their electrifying blue flashes of light that are causes by a chemical reaction when the cells hit against something. However these organisms are not terribly toxic which means that you can actually swim in the glow-in-the-dark water. 

 

Current event # 2

Mystery Of Missing Satellite Debris Finally Solved

Last week People all over the world had feared that NASA's 6.5 ton Upper Atmosphere Research Satellite (UARS) has come hurdling back to earth and is expected to crash land on earth. The space agency has no clue or control where it is going to crash land and when it is going to crash land. 

The satellite finally hit the earth. No one was injured. Nobody knew where it had crashed landed, but after four days the mystery had finally been solved. NASA was expecting for it to go to the southern pasific ocean and that was what the satellite did. It was a region far from population. It is also expected that at least until late October or early November a German satellite will frefall back to earth. the good news is that it is only 2.5 tons, it is smaller than the UARS. Hopefully this one will stay of populated areas too. 

Current event # 1

Astronomers Make A Discovery A Diamond Planet

A few weeks ago NASA's kepler spacecraft revealed a dark alien planet. They have been researching this planet, and quite a few scientists from all over the world have announced something even more exciting, a diamond planet!!! This planet is 4,000 light year away or about an eighth of the way toward the center of the Milky way from earth. The only reason the astronomers where able to spot it, was because of the pulsar star it rotates around. Pulsars are small spinning stars that measure about 20 km in a diameter. The astronomers believe that the "diamond" planet was once a massive star. 

periodic table samples

Scientific Summer

8A

1/9/2011

By: Monica Nagy

Scientific summer

Think about something you did this summer that was scientific. Write a paragraph to describe what you did. Be sure to give some detail of your activity.

This summer I went to Kennedy space center. I know this is part of science because of all the materials they used to make NASA work, the rockets, the moon, and earth everything to do with science. In NASA we got tours around 3 places, one of the places you could see the place where the rockets take off, I also saw the main engine of a rocket, I saw the rocket that landed there in 2011, I saw the lading lane. I saw the BIG HUGE rocket. I saw the poles that fall back to earth after the rocket is about to touch space. I also did touch part of the moon. We also where in the control center.

Write a second paragraph to explain what is scientific about what you did. Give an example and put some detail into your explanation. Refer to science concepts (Newton’s 2^nd Law, gravity, electricity, blood flow, etc.) and give a short lesson if you want.

I think that this was very scientific. We learned about how the people feel and how hard it is to go to space. This had a lot to do with gravity, electricity and much more scientific stuff.

Nasa

control center

moon rock

space ship

chemical party

<iframe width="640" height="390" src="http://www.youtube.com/embed/wBCmt_pJTRA" frameborder="0" allowfullscreen></iframe>

Make an impact!!!

Guiding Question: What are the factors that affect the appearance of impact craters? How do scientists use craters to tell the relative age of them?

Hypothesis: I think that the higher the marble is to be dropped, the deeper the crater is.

Data Analysis: The higher we put the marble the deeper the crater was. The diameter also also got bigger. When we dropped the marble from 200 cm the depth was at least 1.4 cm and the diameter was 2.6.

 

 

 

Moon Phases

Reasons for the Seasons

Guiding Question: How does the tilt of Earth’s axis affect the light received by Earth as it revolves around the sun?

Hypothesis:


Monica’s: I think that when the light of the Sun is shown on the earth, it will spread out, so that the North Pole sometimes doesn't get light, while the South Pole does.

Skills Focus: making a model, observing, inferring, predicting

Materials:

• books
• flashlight
• paper
• pencil
• protractor
• toothpick
• acetate sheet with thick grid lines drawn on it
• plastic foam ball marked with poles and equator

Producer:

1. Make a pile of books about 15 cm high.
2. Tape the acetate sheet to the head of the flashlight. Place the flashlight on the pile of books.
3. Carefully push a pencil into the South Pole of the plastic foam ball, which represents Earth.
4. Use the protractor to measure a 23.5° tilt of the axis of your Earth away from your ‘flashlight sun.’ This position represents winter in the Northern Hemisphere.
5. Hold the pencil so that Earth is steady at this 23.5° angle and about 15 cm from the flashlight on. Dim the room light.
6. The squares on the acetate should show up on your model Earth. Move the ball closer if necessary or dim the room lights more. Observe and record the shape of the squares at the equator and at the poles.
7. Carefully stick the toothpick straight into your model Earth about halfway between the equator and the North Pole. Observe and record the length of the shadow.
8. Without changing the tilt, turn the pencil to rotate the model Earth once on its axis. Observe and record how the shadow of the toothpick changes.
9. Tilt your Earth 23.5° toward the flashlight. This is summer in the Northern Hemisphere. Observe and record the shape of the square at the equator and at the poles. Observe how the toothpick’s shadow changes.
10. Rotate the model Earth and note the shadow pattern.

Noise Pollution

Monica Nagy 7B
Science
3/31/11
Noise pollution

Noise pollution is a type of energy pollution in which distracting, irritating, or damaging sounds are freely audible. As with other forms of energy pollution such as heat and light pollution, noise pollution contaminants are not physical particles, but rather waves that interfere with naturally occurring waves of a similar type in the same environment.
Noise pollution can affect us in many ways. It can cause hearing problems, cardiovascular issues, sleep disturbances, interference in verbal communication and mental health problems. Noise levels above 80 decibels produce damaging effects to the ear. When ear is exposed to extreme loud noise above 100 decibels for a considerable period of time, it can cause irreparable damage and lead to permanent hearing loss. For example: when I was small I was in kindergarten and I had to be operated in the left ear. A few years ago (3-4) I had to be operated in the right ear (this is true).
There are a lot of issues and problems with noise pollution. Most disagreements and arguments are between neighbors. For example, when you’re going to have a party, you should at least worn your neighbors that you will be having a party, and at what time it will start, and at what time it will end. You also must tell your neighbors if you’re having the party outside or inside. If you are having the party in the yard/ garden, don’t forget that sound travels much easier outside then inside. Better still…….why not invite the neighbors? If you are working in the house, make sure not to start to early, maybe around 8 am, and don’t try to work later than 8 pm. This might be better to do on weekends, because some neighbors have children and they have to go to school. On weekends most of them are at home, or at friends (etc). Just be sure to keep the sound in control, because some people might be sick too. Especially when you live near a hospital.
Science can be involved in this in many ways. Science can help find other resources which don’t make so much sound. You your self can even think of a way to help the environment be better. Technology is kind of the same. Technology can help change the material of a thing you’re using, or the sound. For example, I’m writing this essay right now and I can’t really concentrate. I hear motorcycles outside, cars, people building things and so on. This is kind of like noise pollution.
I think since and technology has helped us a lot. But something’s are not working out as well as we thought they would with our world/earth. Us people try as hard as we can to solve problems, but sometimes problems can’t be solved. Noise pollution has been a problem to some people. Like the deaf, or people who are about to be deaf. Noise pollution is something that we COULD stop, maybe, but we are not trying hard enough. We have to do something to help people to overcome these things.







Bibliography


“Noise Pollution Effects.” www.buzzle.com. N.p., n.d. Web. 31 Mar. 2011. .

“What Constitutes Noise Polution.” Problem Neighbours . N.p., n.d. Web. 31 Mar. 2011. .

tuning fork lab

Guiding Question: How does the density of a material affect the properties of sound travelling from a tuning fork?

Hypothesis: I think the sound will travel slower through more dense material.

Materials:
Tuning fork
table
door
chair


Procedure:
1. Thought of which materials to use
2. We got a tuning fork
3. Banged it on the table to see how the sounds were
4. Banged it on the door to see hoe the sounds were
5. Banged it on the chair to see how the sound were
6. Wrote our analyzes

Conclusion: The sound of the table was the deepest of all. The door had a higher sound because f the material it was made of. The Chair had a quiet sound. The thing that was interesting is that all of them had long sounds for some reason. I would want to know why the lenght of the sounds were all the same.

Further Inquiry: If i could change this experiment i would have used different tuning forks. And maybe also change the materials we used.

Properties of sound lab

1cm= shortest sound
2cm= short sound
3cm= middle sound
4cm= fast sound
5cm= fastest sound

Earthquake safty

During an earthquake you should drop, cover and hold. Here is how to do it.

MY ROOM

The safest place in my room would probably be under my desk. my bed wouldnt be that good beacuse it's very old and it has broken down already a few times. If i was sleaping during an earthquake, i would probably die beacuse my bed is right next to a big window. I also have unstable shelves in my room. My closet it very safe to. it is atached to the top of the cealing.
But the worst thing of all it that the balcony of my parents is the roof of my room.

MY BROTHER'S ROOM

His room has big window's too. the safest place in his room would probably be under his table, it's very stable. His bed doesn't have any space underneath. His bed is also next to a very big. window which could fall on him. His closet is just like mine to, they are both attached to the roof of our bed rooms, but being in the closet inst the safest place to be in. But the worst thing of all it that the balcony of my parents is the roof of his room, just like mine.

MY SISTER'S ROOM

My sister's room is not that safe, the most safest place would probably be the windows. She has really small windows. she doesn't have any where to go and stay safe in her room. She has too bed's. One is pretty safe but it doesn't have a hole at the bottom to go in and hide. Her other bed does but it's not stable so it would fall on her. the safest place in her room would probably be the doorway.

MY YOUNGEST BROTHER'S ROOM

His bed doesn't have space to go under. His desk has wheels so it's not safe either, his bed is not next to a window or under a light. His room is probably the safest of all in my house.

MY PARENT'S ROOM

my parents room is on the top floor, so they have the best place to stay safe in. There bed it under huge pictures, and that is not very safe. there shelves are all atached and the pictures are too. Their bathroom is safe to, all liquids are safe secured. Their safest place to be in is probably just their room, they don't have any where to go.

MAKE SURE NOT TO HAVE THESE OBJECTS NEAR YOU DURING AN EARTHQUAKE OR IN THE NIGHT

big windows

mirror

book shelves

Tsunami Essay

Tsunami


A violent submarine volcanic eruption can create enough force to uplift the water and generate a tsunami. Generally, tsunamis formed by submarine landslides and volcanic eruptions dissipate quickly and rarely effect coastlines unlike the Pacific-wide tsunamis caused by earthquakes. Around the Pacific Ocean, denser oceanic plates slip under continental plates is a process known as subduction. Subduction earthquakes are particularly effective in creating tsunamis.Tsunamis differ from ordinary wind concentrated waves and are sometimes incorrectly called "tidal waves."

As tsunamis near the shoreline and shallow water, the speed decreases. The energy contained in the tsunami, which is dependent on both wave speed and height remains constant. These tsunamis have great erosion potential, stripping beach sand that may have taken years to accumulate, and destroy coastal vegetation. They are capable of flooding hundreds of meters inland past the typical high water level, and the fast moving water can crush homes and other coastal structure.

Through out history there have been numerous examples of the massive destruction caused by tsunamis. One tragedy occurred in Prince William Sound, Alaska, in 1964. On March 27, Good Friday, a massive tsunami was formed after an earthquake measuring 8.6 on the Richter scale had taken place. The tsunami reached 40 feet in height and caused mass destruction that lead to the death of many of the Alaskan people. The destruction caused 107 deaths and 84 million dollars in damages.

indian ocean tsunami video

Indian Ocean tsunami video talks about:
• Epicenters
• Earthquakes
• How tsunamis form
• Tectonic plates


LINK:

www.youtube.com/watch?v=4bIFUosjKkY&NR=1

Finding the Epicenter

Guiding Question: How can you locate an epicenter.
Hypothesis: We have to find where the earth quake was felt the most. The map shows us where all three disturbances met.

City	Difference in P and S Wave Arrival Time	Distance to Epicenter
Denver, Colorado	2min 40 sec	1,600 km
Houston, Texas	1 min 50 sec	1,000 km
Chicago, Illinois	1 min 10 sec	600 km

Analyze and conclude:

1. Tennessee

2. 

3.   First- Chicago      Last- Colorado

4. About 3,200 kilometers

5.

6. It is necessary to have 3 locations so you can find where all three locations or more intersect/come together. This is important because this way people could know where the most danger is going to be. 

Bill Nye the science guy video notes

Sometimes earth quakes go up and down or back and forth. The earth is flowting on molten liquid rock. Every one feels earthquakes. The earthquake might be small or big but mostly we always feel it. The center of an earthquake it called the Epicenter. 

                                         Science wave lab

Problem: What floating object can move the fastest on a low frequency or on a high frequency?

Materials:

·       Water

·       Ping pong ball

·       Cork

·       Small Styrofoam ball

·       Ruler

·       Small see through aquarium

·       Clay 

PROCEDURE

1. 1.   Fill the aquarium with water 1.5 inches.

2. 2.   Tape a ruler in the front

3. 3.  Get the materials

4. 3.   Have a stop whatch to see how long it takes the material to move 10 cm.

5. 4.   Write down your data 

6. 5.   Use the clay to make a disturbance/waves for the object to move.

7. 6.   Check with the stopwathch how long it takes for the object to move 10 cm

Data

Cork-   Low frequency: 49.6 sec

             High frequency: 11.5 sec

Ping pong ball- Low frequency: 19.2 sec

                            High frequency: 3.4 sec

Small Styrofoam- Low frequency: 31.9 sec

                         High frequency: 2.0 sec

	Cork	Ping Pong Ball	Small Styrofoam Ball
low frequency	49.6	19.2	31.9
High frequency	11.5	3.4	2

Data Analysis:  The cork was the heaviest of all, so it moved the slowest, the ping pong ball was almost the same as the small Styrofoam ball.

Conclusion: I kind of knew that the small Styrofoam ball would have moved the fastest on high frequency, but I didn’t expect the ping pong ball to move the fastest in low frequency. The Styrofoam ball is the lightest of all three objects the second lightest was the ping pong ball, and the cork was the heaviest of all.