What is an atom?
The smallest unit of matter that makes up everything.
What are the three main states of matter?
Solid, liquid, and gas.
What is everything made of?
Everything is made of matter.
Is burning wood a chemical change?
yes
What are the three main parts of an atom?
Protons, neutrons, and electrons.
What state of matter has a definite shape and volume?
Solid.
What do you call something that you can pour, like water?
A liquid.
What happens when you heat ice?
It melts into water.
Where are protons and neutrons found?
In the nucleus of the atom.
What happens when a solid melts?
It changes into a liquid
Can we see atoms?
No, they are too small.
What is water as a solid called?
Ice
What charge does an electron have?
Negative.
What is evaporation?
When a liquid changes into a gas.
What do we call a mix of two or more things?
A mixture.
What do we call a mix of two or more things?
A mixture
What determines the atomic number of an element?
What is condensation?
When a gas changes into a liquid.
Is freezing water a chemical change?
No, it’s a physical change.
What do we call scientists who study chemistry?
Chemists.