To change from a liquid to a solid energy must be... added,removed, remiain constant?
Added ( heat + energy)
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10
A scientist examines a substance in a container. The substance does not have a shape or volume. What is sit?
Gas
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5
State the Law of Conservation of Matter
Matter can never be created or destroyed
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20
When 105 grams of Calcium combine with fluorine gas to produce 200 grams of calcium fluoride. How much fluoride gas is needed to react with the 105 grams of calcium?
95 grams (Law of Conservation of Matter)
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15
Boiling point, Combustibility, Oxidation, Reactivity. Which one is a physical property?
Boiling Point
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lifesaver
Give 15 points!
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rocket
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gift
Win 25 points!
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thief
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15
Name Three Disney Movies
Random
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15
Name that song and artist!
My Choice
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5
A banana changing colors on the kitchen counter. Chemical or Physical Change?
Chemical
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lifesaver
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gold
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shark
Other team loses 25 points!
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baam
Lose 5 points!
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15
Who was drafted as the number one pick in the 2021 NFL Draft?(hint: it was last week and he went to the Jags)
Trevor Lawrence
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10
Salt water is a homogenous or heterogenous mixture?
Homogenous
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10
What state of matter has a definite shape but not a definite volume?
Liquid
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15
Name two examples of a pure substance
Random
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boom
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seesaw
Swap points!
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rocket
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thief
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15
A puddle of water evaporates. Chemical or Physical Change?