Week 1-3
Weeks 4-6
Week 7
Week 8
100

What is the friction objects experience as they move through the air. 

What is air resistance.

100

What is the smallest basic unit of matter made of protons, neutrons, and electrons

What is an atom?

100

What is any characteristic of a substance you can observe without changing the identity of the substance.

What is a physical property?

100

What is the process by which a liquid becomes a solid?

What is freezing?

200

What is the force that pushes particles in an object closer together. Such as when you squeeze a stress ball. 

What is compression. 

200

What are two or more atoms bonded together?

What are molecules?

200

What describes an ability of a substance to form new substances, such as a log's ability to burn into ash?

What is a chemical property?

200

What is a process by which a liquid becomes a gas with bubbles?

What is boiling?

300

What is a force that opposes motion. Such as the force that makes a heavy couch hard to push on a thick carpet. 

What is friction?

300

What is the word for a substance that contains a single type of atom?

What is an element?

300

What is any change you can make in a substance that does not change the substance into something else? 

What is a physical change?

300

What is a substance that has a fixed volume and shape?

What is a solid?

400

What is the force an object exerts to resist being stretched or pressed? Such as when you pull on a rubber band. 

What is the elastic force?

400

What is a substance that consists of two or more different types of atoms bonded together?

What is a compound?

400

What is it when a substance changes into another substance such as through burning, rusting, and tarnishing. 

What is a chemical change?

400

What is a substance that has fixed volume but does not have a fixed shape?

What is a liquid?

500

What is the force created on the rope in a tug of war or on the cable of a crane lifting a heavy object. 

What is tension?

500

What is a combination of different substances that remain the same individual substances and can be separated by physical means, such as trail mix?

What is a mixture?

500

What are the different forms in which matter can exist?

What are states of matter?

500

What is a substance that has no fixed volume or shape.  

What is a gas?

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