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Sci - Lessons 16-21
Question | Answer |
---|---|
What do we call it when a liquid turns into a gas? | Evaporation |
What do we call it when gas turns into a liquid? | Condensation |
How do clouds form? | They form from water vapor that condenses onto tiny particles floating in the air. |
Does something need to be in a freezer in order to freeze? | No |
What kind of energy needs to be added in order to melt something? | Thermal |
When water freezes, does it expand or contract? | Expand |
When most things freeze, do they expand or contract? | Contract |
What is volume a measure of? | How much room an object takes up |
In order to float, an object must weigh more or less than an equal volume of the water? | Less |
Does ice float or sink in water? | Float |
Two cans of soda are put in water. One sinks, while the other floats. Which is the diet soda? | The one that floats |
How can a drop of water in the ocean end up falling as rain on the roof of your house? | Ocean water would evaporate into a cloud and clouds move. It could move over your house. |
When water is attracted to the surface of a metal, is that adhesion or cohesion? | Adhesion |
If water "beads up" on a surface, is it more attracted to the surface or to other water molecules? | It is more attracted to other water molecules than to the surface it is on. |
As you travel higher into the air, what happens to the temperature? | It gets cooler |