Solids
What is a solid?
Matter that has a shape of its own.
What is a liquid?
matter that takes the shape of the container it's in.
What is a gas?
Matter that spreads to fill the space it is in.
What is a physical change?
A change in the size and shape of matter.
What is a chemical change?
When the properties of matter change.
What does a ruler measure?
How long, wide or tall something is.
Without a container, a liquid will...
flow
We can't see gases, but they are...
everywhere
How does water change physically?
Name two ways a chemical change can happen.
Rust and burn.
What does a ruler measure?
How much mass something has.
The amount of space something takes up.
Name something that is a gas.
air, oxygen, helium
Folding and Bending matter changes its ___________.
Cutting and tearing matter changes its ____________.
Shape, size
Can matter be changed back after a chemical change?
No.
Name a solid in your home.
Answers vary.
What can we measure volume with?
A measuring cup.
Do gases have mass? Give an example of how we can measure gases.
Yes. We can use a stick to act like a balance. Blow up one balloon. The balloon with air inside will have more mass.
Describe how a paper can physically change.
You can fold it, bend it, tear it, or cut it.
What causes metal to rust?
Water and air.
Glass is a solid. Describe the properties of glass.
smooth, can break, clear.
honey
Do gases have a shape?
No.
Washing a dog is a physical change. Why?
The dog was dry, then it gets wet.
What are two ways we can know a chemical change is happening?
Seeing light and feeling heat.