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- 1. Multiple Choice
"Substance" is another word for material. It's anything you can touch. For example, water is a substance. Salt is a substance. Gold is a substance.
true
true
- 2. Multiple Choice
Gold, iron, and oxygen are all ___________.
experiments
elements
data
animals
- 3. Multiple Choice
What do carbon, silver, and hydrogen have in common?
They are all Liquids only.
They are all green.
They are all elements.
They are all hot.
- 4. Multiple Choice
Hydrogen and oxygen bond to make water.
What does "bond" mean?
move up and down
make a copy
join together
split up
- 5. Multiple Choice
What does "bond" mean?
split up
copy
join together
- 6. Multiple Choice
Sometimes, matter changes in shape or state, but NO NEW chemical is made. What do we call this?
a physical change
a chemical change
a bad change
- 7. Multiple Choice
In a physical change, there is just a change of state or shape.
Ice melting is an example of a ________.
physical change
chemical change
no change
- 8. Multiple Choice
In a CHEMICAL change, a new chemical substance is made.
true
false
- 9. Multiple Choice
A chemical change is a chemical reaction.
true - They mean the same thing.
false
- 10. Multiple Choice
In a chemical change, at least one chemical is changed into ____________.
another animal
another chemical
- 11. Multiple Choice
Which is a chemical change (or reaction)?
baking a cake
ripping a cloth
melting ice
- 12. Multiple Choice
Which is a chemical change (or reaction)?
rust forming on a metal nail
mixing M&M's and peanuts in a bowl
boiling water
- 13. Multiple Choice
Which is a chemical change (or reaction)?
mixing salt and water
mixing pennies and nickles
vinegar mixed with baking soda
- 14. Multiple Choice
Page 13 of your eBook shows ______ ways to tell that a chemical change has happened.
2
5
20
36
- 15. Multiple Choice
Which one is a sign that a chemical change has happened?
something changes colors
change in size
noise
- 16. Multiple Choice
Which one is a sign that a chemical change has happened?
It's lunch time.
change in size
new smell (or odor)
- 17. Multiple Choice
Which one is a sign, or clue, that a chemical change has happened?
melting butter
crushing
new gases or solids appear
- 18. Multiple Choice
Which one is a sign, or clue, that a chemical change has happened?
The change is hard to undo.
The change is easy to undo.
The change is pretty.
- 19. Multiple Choice
How do we know that this is a chemical reaction?
What are the signs, or clues?
the change is hard to undo
fire
gas bubbles (or foam)
- 20. Multiple Choice
How do we know that this is a chemical reaction?
What are the signs, or clues?
none
new animal
color change
temperature change (heat from the fire)
- 21. Multiple Choice
How do we know that this is a chemical change?
What are the signs, or clues?
sound
melting
color change
a new solid is made (the rust is a new solid)
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