Water Cycle
Gravity/Friction
Magnetism
Water
Mixtures/Solution
100
Sun
What is the main source of evaporation?
100
Different sized objects falling at same speed
What is the speed objects fall if they are different size?
100
pulling magnets apart
What is the effect of a plastic chip between two magnets in pulling them apart?
100
water contracts when cooled
What happens when you put water in the refrigerator and it gets colder?
100
salt dissolves and sand sinks to the bottom
What will happen when you mix salt and water in one beaker and sand and water in another beaker?
200
Evaporation
What is the process that separates water from salt in a solution?
200
friction
What is the result of rolling a toy car down a rough surface?
200
Get more reliable results
Why would you repeat an experiment several times before writing a conclusion?
200
condensation
What is the process that explains why a mirror gets fogged up when someone takes a hot shower?
300
more air movement and higher temperature
Why would a hair dryer dry hair faster?
300
observe and record the effect of a magnet on a metal paper clip from different distances
Which is the best way to design an experiment to test how distance affects the ability of a magnet to attract a piece of metal?
300
dissolved
What is the process why crystals (a solid) when poured into a cup would seem to disappear?
400
the greater the surface area, the slower it evaporates. the least surface area the faster it evaporates
Does the surface matter when testing the rate of evaporation?
400
magnet
What tool you would use to separate iron fillings from a mixture of sand, salt, and iron fillings?
400
a solid changes to a liquid
What changes is caused by adding heat?
500
lettuce and tomato sawdust and water sugar and water iron fillings and water
Which is a solution when mixed together?
500
the water became warmer
What happens after a period of time when you take frozen water out of the freezer?
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