Show:
Vocabulary
Physical Change
Chemical Change
Matter
Mixture & Solutions
100
Anything that has mass (weight) and takes up space.
What is MATTER?
100

Is a making homemade salsa an example of a physical change?

What is YES? You made a mixture but you can easily separate the items that make the salsa.

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
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

You can easily see the individual substances and you can separate them.

What is a MIXTURE?

200

You can add or remove this to make a chemical change.

What is HEAT?

200

Is combining baking soda and vinegar an example of a physical change?

What is NO? When you mix baking soda and vinegar, 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
Name the 3 types of matter.
What are SOLID, LIQUID, GAS?
200

Substance disburse evenly and you cannot see what made the new substance.

What is a SOLUTION?

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

If you place a pot of water on a burner, what happens if you forget about the water?

What is all the water will evaporate?

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
These molecules can move freely and will take the shape of any container you put them in.
What is a LIQUID?
300

If I use a sieve to pour a mixture of sand and water, what am I doing to remove the sand?

What is separating the mixture?

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

Name two ways you can change water's form.

What is freezing and melting water to and from ice is an example of a physical change?

400

True or False. Adding heat to salt water to make it boil would cause the salt to separate from the water.

What is TRUE? Heat would have to be added to the mixture to cause the water to evaporate leaving only the salt behind.

400
These molecules move rapidly and freely whereever there is open space.
What is a GAS?
400
Explain how iron fillings and sand can be separated using physical properties.
What is iron is magnetic and sand is not, so you can use a magnetic wand to separate the two substances?
500
This type of matter keeps a definite shape.
What is a SOLID?
500

How does water change from a liquid to a solid?

What is the temperature needs to get cold enough?

500

You have two clear liquids and pour them both into a container.  How would you easily know if a chemical change occurred?

What is the color changed?

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

If you poured sugar into a beaker that has sand in it, how will adding water help you to separate the sugar and sand?

What is the salt will dissolve in water and the sand will not?