Solid, Liquid, Gas
Which state of matter has a definite shape and definite volume
solid
Cutting paper into smaller pieces is what type of change
Physical
What is a proton?
Tiny particle with a positive charge and found in the nucleus.
An atom with atomic number 8 has how many protons
8
What planet is known as the “Red Planet.”
Mars
Which state of matter takes the shape of its container but keeps a fixed volume.
Liquid
Rust forming on iron is what type of change
Chemical
What is a neutron?
Particle has no charge and is found in the nucleus.
An atom with 12 protons has how many electrons?
12
Plants use this process to make food using sunlight
Photosynthesis
Which state of matter spreads out to fill any container completely
Gas
What is a physical change?
No new substance is formed.
What is an electron?
Negatively charged particle moves around the nucleus.
An atom with mass number 23 and atomic number 11 has how many neutrons
12
What force keeps planets orbiting the Sun
Gravity
What is sublimation?
In this process, a solid changes directly into a gas without becoming a liquid first.
Burning wood is an example of what type of change.
A chemical change
What is the center of an atom called
Nucleus
A carbon atom with 6 protons and mass number 14 has how many neutrons.
8
14 - 6 = 8
Water boils at what temperature in degrees Celsius
100
What is evaporation?
A liquid changes into a gas at the surface of the liquid.
Melting ice into water is what kind of change
physical change
What are the 3 subatomic particles?
Proton, Neuron, Electron
An atom with mass number 40 and atomic number 18 contains how many neutrons.
22
40 - 18 = 22
Which organ pumps blood throughout the human body.
The heart