Is this a physical or chemical property: flammability
chemical
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15
Is this a physical or chemical property: the ability to react with oxygen
chemical
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15
When something is dissolved, it is usually mixed completely evenly. This makes it an example of ...
a solution
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15
Sally weighs baking soda and vinegar and finds that it ways 50 g. She mixes them together and weights them again and finds that they now weigh 30 grams. Explain what happened.
The total amount of matter is still 50 g (due to the law of conservation of matter), but some of the gas escaped so it was not measured the second time.
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15
Is this matter or not matter: air
Matter
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15
Is this a mixture or solution: metal alloys
solution
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15
True or false: the particles in a solid don't move
False - they vibrate slowly in place
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15
Is this a mixture or solution: salt water
solution
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15
Is this matter or not matter: light
not matter
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15
What does something need in order to be considered matter?
It needs to take up space and have mass.
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boom
Lose 50 points!
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shark
Other team loses 10 points!
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gift
Win 10 points!
Okay!
lifesaver
Give 10 points!
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15
Mineral water is water that has different minerals dissolved in it. When a glass of mineral water is left out for a few days, crystals start to form on the glass. How many new substances are formed?
None - the crystals are the solid minerals separating from the liquid.
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15
Is air matter? Explain your answer.
Yes - Air is matter because it takes up space and has mass.
