Science 1
An __________ is a type of investigation.
experiment
A _____ is a factor in an experiment that may change
variable
______ is the amount of "stuff" in an object
Mass
A ______ is an idea or explanation that can be tested by investigation.
hypothesis
_____ is anything that has mass and takes up space
Matter
If a liquid _______, or changes state from a liquid into a gas, the solid is left behind
evaporates
How can you tell which is harder, chalk or concrete?
concrete because it doesn't scratch. Chalk leaves a mark because it is softer
____________ allow thermal energy to flow easily through them as heat.
thermal conductor
How can the property of hardness be tested?
scratch test
When using a balloon, how do you know that air, a gas, is made of tiny particles if you cannot see them?
The balloon fills up
What temperature does frozen water melt?
0 C (32F)
What happened when we put our bag of water in the freezer?
it froze
What are the 3 physical states of matter?
liquid, solid, gas
What's wrong with this sentence:
mrs.guess loves teaching 5th grade!
Her name is a proper noun, and it should be capitalized!
Is running in the cafeteria allowed?
NO
What is the name of Mrs. Guess' plant?
Winston
Is sand soluble or insoluble in water?
insoluble
Everyone gets an extra 400 points for free!
because Mrs. G is awesome
Is lemon juice soluble or insoluble in water?
soluble
Condensation is a change from a gas to a _____
liquid
How does boiling affect water's state of matter?
it turns from liquid to gas
A _______ causes a material to change into an entirely different material with properties that are different from original material
chemical change
What temperature does liquid water boil?
100 C (212 F)
Name 6 materials that can be used to identify matter:
color and shape, texture, solubility, hardness, reflectivity, magnetism
What happened when we added our tablet to our bag of water?
It bubbled