Natasha+kadarusman

1: MATTERS AND MIXTURES! Student Tasks: 2:

3: In the solid, the bonds of the particles are tightly bonded and can't be compressed any more then it already is. The liquid particles are loosly bonded and flow through to fill it's container. It's bonds are easy to break unlike a solid's. However, particles in a gas is very different. This is because the particles are not bonded at all and they vibrate more then the liquid and the solid.

1: Why do icebergs float in antarctic and arctic waters? Do you think there is much of the iceberg under water or is it mostly above the water? How could you test your hypothesis? I think that it floats because it is lighter then water and it is a solid. I think the iceberg is mostly in the water. I could test it by dropping an ice cube in a cup of water.

2: When you have a jar with a very tight lid, you can run it under hot water and it becomes easier to open. Why? Because the particles in the solid create kenetic energy which means the solid vibrates more which allows it to open easier.

=Student task four:= RATS rats have a hearing range between 1,000 and 90,000 Hz.