Show:
Vocabulary
Physical Change
Chemical Change
Compounds
Solutions/Mixtures
100

The measure of the amount of solute dissolved in a solvent

What is concentration?

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?
What is YES? You cannot change rust back into the metal is was before; therefore, it is a chemical change.
100

This is formed when two or more elements are chemically combined.

What is a compound?

100

This is made when two or more substances are physically combined but not chemically joined.

What is a mixture?

200
These are the characterstics of an object and you use your senses to identify them.
What are PHYSICAL PROPERTIES?
200
Is Alka-Seltzer and water an example of a physical change?
What is NO? When you mix Alka-Seltzer and water, bubbles form, which indicates a chemical change as taken place.
200
Name the two indicators of a chemical change.
What are color change, bubbles, temperature change?
200

These combine to make a compound.

What are molecules?

200

A mixture where substances are evenly mixed, like saltwater, is called this.

What is a solution?

300
Type of change where a new substance is created.
What is a CHEMICAL CHANGE?
300
Name a food that is an example of a physical change.
What is a salad or trail mix?
300
Name a food that is an example of a chemical change and explain why.
What is a cake, because you cannot turn a cake back into the eggs, flour, sugar, etc. that you mixed together?
300

Water (H₂O) is a compound made of these two elements.

What are hydrogen and oxygen?

300

In a solution, the substance that gets dissolved (like salt in saltwater) is called this.

What is the solute? 

400
A type of change where the substance stays the same, but size and shape may change.
What is a PHYSICAL CHANGE?
400
Explain how water could be an example of a physical change.
What is freezing and melting water to and from ice is an example of a physical change?
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

This compound, also known as CO₂, is what we breathe out and plants use for photosynthesis.

What is carbon dioxide?

400

Daily Triple: In a solution, the substance that does the dissolving (like water in saltwater) is called this.

What is the solvent?

500

These describe how a substance can change into a new substance, such as flammability reactivity with other substances.

What are chemical properties?

500

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

What is YES, it is a physical change, because 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

Provide an example of a chemical change that impacts your life everyday.

cooking food, digesting food, gasoline in car, etc.

500

Table salt (NaCl) is made from these two elements.

What are sodium and chlorine?

500

This type of mixture looks the same throughout, like sugar dissolved in water. This is another way to say "solution"

What is a homogeneous mixture?