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15
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What are some ways to separate the substances in a mixture?
Hands, tweezers, colander, sieve, magnets....
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15
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I poured 10 grams of sand into a cup. I added 10 grams of iron filings. How many grams is the mixure?
20 grams
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15
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Define a mixture.
A combination of 2 or more substances where the properties of each substance stay the same.
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lifesaver
Give 25 points!
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gift
Win 10 points!
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gift
Win 15 points!
Okay!
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baam
Lose 10 points!
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15
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How can we tell if a substance in a mixture keeps its physical properties?
The substance can be separated from the mixture. The substance will still have the same physical state, etc...
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15
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Can we still identify the parts of a mixture after they are combined? Why or why not?
Yes because the properties of each mixture are the same.
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15
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If I mix water and sand, what are some properties that will not change.
The water is still a liquid and the sand is still a solid (physical state). The color. The mass. The texture.
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seesaw
Swap points!
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star
Double points!
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gift
Win 20 points!
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baam
Lose 20 points!
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15
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Define 'conserve' or 'conservation' of matter.
Matter cannot be created or destroyed.
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15
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I poured 5 grams of iron filings into a cup. I added _______ grams of sand. The mixture is 15 grams. How many grams of sand were added?
10 grams
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