Density of Liquid!

Kids will love this fun experiment!

Materials Needed:
Glass cup
Water
Oil (I used vegetable oil)
Food Coloring
Salt

Fill a cup 2/3 of the way with water.

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Pour vegetable oil into your cup ( you want to create a layer that’s about 1 inch). What happens when you pour the water in?
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Add drops of food coloring to the cup. What is happening to the food coloring?
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Add pinches of salt. What is happening?
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Eventually my boys wanted to pour the rest of the salt in!
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It started making bubbles at the top.
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