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Vocabulary
Type of Change
Changes
Matter
Extra
100
Anything that has mass (weight) and takes up space.
What is MATTER?
100
Is a melted popsicle an example of a physical change?
What is YES? You can melt and refreeze a popsicle and it will still be a popsicle.
100

Is rust an example of a chemical change or physical change?

What is a chemical change? You cannot change rust back into the metal it was before; therefore, it is a chemical change.

100
True or False. If you know the weight of a portion of an object than you CANNOT determine the weight of the whole object?
What is FALSE?
100

The smallest unit of a chemical element that can exist.

What is an atom?

200

What is evaporation?

A liquid becoming a gas

200
Two substances are mixed together, and light is produced. What type of reaction is this?

What is a chemical reaction?

200
Name the two indicators of a chemical change.
What are color change, bubbles, temperature change?
200
Name the 3 types of matter.
What are SOLID, LIQUID, GAS?
200

A group of two or more atoms held together by a bond.

What is a molecule?

300
Type of change where a new substance is created.
What is a CHEMICAL CHANGE?
300

What type of change is a marshmallow being cut in half? Why?

What is a physical change?

300

Is water turning from a liquid to a gas at 100 degrees C a chemical or physical change?

What is a physical change? Changing state is a physical change.
300

What is the standard unit of mass in the metric system.

What is a gram?

300

The measure of how much matter is in an object.

What is mass?

400
A type of change where the substance stays the same, but size and shape may change.
What is a PHYSICAL CHANGE?
400

Is a plastic pipe cracking when it freezes a chemical or physical change?

What is a physical change? We changed the shape but not what it is made of.

400
True or False. Turning peanuts to peanut butter is an chemical change.
What is FALSE? To make peanut butter, you grind up roasted peanuts, so nothing new is being created.
400
These molecules move rapidly and freely whereever there is open space.
What is a GAS?
400

When this is added or removed from a substance, the state of matter can change.

What is heat/energy?

500
This type of matter keeps a definite shape.
What is a SOLID?
500

Explain how the water cycle an example of a physical change.

What is water changes from a liquid/solid when it precipitates, to a gas when it evaporates, then forms back into a liquid when it condensates. Then the process repeats again with the same substance, WATER!

500

Explain how a rocket launch is an example of a chemical change.

What is the fuel combines with another chemcial to produce large volumes of a hot gas that propel the rocket into space?

500
Identify 1 example of a solid, liquid, and gas.
What is Solid- desk, book; Liquid- water, lemonade; Gas- helium, air?
500

What is a precipitate? 

When two or more liquids are combined to form a solid.