Matter
Atomic Structure
Reactions
Motion & Force
Energy
100

This state of matter has a definite shape and volume (does not change based on the container)

What is solid?

100

The smallest particle of an element that still has all the properties of that element.

What is an atom?

100

Nonmetals tend to react with this kind of element by forming ionic bonds.

What are metals?

100

This is the rate of change in the speed of an object. It happens when an object speeds up (or slows down).

What is acceleration?

100

This type of energy is transferred by vibrations through air (you can hear it).

What is sound energy?

200

This state of matter has no definite shape or volume.

What is gas?

200
This subatomic particle has a negative charge

What is an electron?

200
How many outer electrons do stable elements have?

What is 8? (or 2)

200

This measures the rate of motion and direction of an object, it is calculated by dividing distance by time (answer is NOT speed).

What is velocity?

200

This type of energy is "stored energy." A basketball in midair and a compressed spring have this.

What is potential energy?

300

This state of matter has a definite volume, but not a definite shape.

What is liquid?
300

This is the center of an atom that contains protons and neutrons.

What is the nucleus?

300

The outer, highest energy electrons are called this.

What is valence electrons?

300
Two equal forces push on an object in opposite directions. The object does not move. This is an example of ________ forces.

What are balanced forces?

300

This is the energy of motion.

What is kinetic energy?

400

This is something that is a combination of two or more different substances that are physically combined (salad, salt water)

What is a mixture?

400

Hydrogen, the first element on the periodic table, has this many protons

What is 1?

400

Nonmetals form covalent bonds with this type of element.

What are other nonmetals?
400

The name of the force that resists motion between objects is this.

What is friction?

400

This type of energy causes the temperature of an object to change.

What is heat or thermal energy?

500

This is something that is a combination of two or more different substances that are chemically combined (salt, sugar, water)

What is a compound?

500

Isotopes are versions of elements that differ in the number of this subatomic particle.

What are neutrons?

500

These elements do not usually form bonds with other elements.

What are noble gases?

500

Every action has an equal and opposite reaction is this Newton's Law (1, 2, or 3)

What is Newton's 3rd Law?

500
The Law of Conservation of Energy states that energy cannot be __________ or __________.
What is created or destroyed?