safety goggles and ask an adult to carefully pour the hydrogen peroxide into the bottle . 2 . Add 8 drops of your favorite food coloring into the bottle . 3 . Add about 1 tablespoon of liquid dish soap into the bottle and swish the bottle around a bit to mix it . 4 . In a separate small cup , combine the warm water and the yeast together and mix for about 30 seconds . 5 . Now the adventure starts ! Pour the yeast water mixture into the bottle ( a funnel helps here ) and watch the foaminess begin !
You will need :
• A clear drinking glass
• 1 / 4 cup vegetable oil
• 1 teaspoon of table salt
• Food coloring ( optional )
• Water
Try Some Lava in a Cup
How does it work : So what ’ s going on ? Of course , it ’ s not real lava but it does look a bit like a lava lamp your parents may have had . First of all , the oil floats on top of the water because it is lighter than the water . Since the salt is heavier than oil , it sinks down into the water and takes some oil with it , but then the salt dissolves and back up goes the oil ! Pretty cool huh ?
How to proceed : Fill the glass about 3 / 4 full of water . Add about 5 drops of food coloring . Slowly pour the vegetable oil into the glass . See how the oil floats on top – cool huh ? It gets better . Now the fun part : Sprinkle the salt on top of the oil . Watch blobs of lava move up and down in your glass ! If you liked that , add another teaspoon of salt to keep the effect .
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