States of Matter
What is a state of matter that has particles that vibrate in place and stay very close together?
A solid
The reason a balloon inflates when you blow air into it is because these tiny things take up space. What are those things?
What state of matter does a solid chocolate bar turn into when it is heated up?
A liquid
If you want to fill a jar with a liquid, which one should you fill it with: salt, oil, steam?
Oil
A gas
An un-melted chocolate bar has this property, which makes it solid. What is the property: definite shape or not definite shape?
Definite shape
You can melt butter into a liquid and then let it cool back into a solid. This is a type of what kind of change: reversible or irreversible.
Reversible
Wood and papers are examples of which type of matter: solid, liquid, or gas?
Solid
When you pour this type of matter into a container, it takes the container's shape but keeps the same volume. What type of matter is it?
A liquid
The fact that you cannot see the gas inside a balloon is because these are too small to be seen: particles/molecules or large pieces of fabric?
Particles/Molecules
When a brownie batter bakes into a brownie, the change cannot be undone. This is called what type of change?
An irreversible change
Air and steam are examples of which type of matter?
Gas
What is a type of matter that has a definite shape?
A solid
When steam spreads out from a kettle, it shows that steam has no definite shape and does this: fills the space or clumps together
Fills the space
What causes liquid batter to harden and change into a cake?
Heating
Cheese melts and then hardens again that shows changes are ___________: reversible or irreversible?
Reversible
What is a type of matter that has no definite shape and spreads to fill its container?
A gas
A liquid is identified because it always does this when moved into a new container: evaporates right away or takes the shape of the container?
Takes the shape of the container
The reason cake batter did not return to liquid after cooling is because the change was not ___________.
Reversible
This food starts as a liquid batter and ends as a solid after the heat/energy from baking changes it permanently.
Cake, brownie