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4th- Sci Unit 8 1-?
4th Grade Science Unit 8 Questions
| Question | Answer |
|---|---|
| When liquid wax takes the shape of a mold as it cools it is doing what? | Freezing |
| When snow changes into water and drips off of a roof it is doing what? | Melting |
| When water disappears from a street puddle it is doing what? | Evaporating |
| What are some ways you can make a physical change to a piece of paper? | Soaking it, shredding it, folding it |
| What are some ways you can make a physical change to a piece of string? | Perfume, sew with it, tie it. |
| What happens with ice cream is removed from a freezer? | It heats up and melts turning from a solid to a liquid. |
| When solid wax is heated and it turns into a liquid what is happening? | Heat energy is added and it causes melting |
| What is lemonade? | A solution |
| What is the solvent in Lemonade? | Water |
| What are the solutes in Lemonade? | Lemon juice and sugar |
| A student adds 10 g of sand, sugar, and salt to 50 mL of water. Did he make a solution? | The sand will not dissolve so sand and water make a mixture, not a solution. |
| A chemical property of iron is its ability to _____? | Rust |
| Mrs. Koester gives your two beakers of water, some table salt, and some pepper. She tells you to use these to make one mixture and one solution. Describe what you do. | I would put the salt in one beaker to make a solution and the pepper in the other beaker to make a mixture. |
Created by:
carudolph
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