Put a pile of baking soda on the baking sheet. Put a small amount of vinegar in the cup and add a drop or two of food coloring. Have your child use the spoon or eye dropper to drop (or just pour) a little vinegar solution onto a pile of baking soda and watch your volcano erupt!
Add 1 teaspoon ARM & HAMMER Baking Soda into a small, empty plastic cup. Place this cup into the volcano crater. Quickly pour vinegar mixture into the ARM & HAMMER Baking Soda cup in the crater. Enjoy the “lava” as the volcano erupts.
STEP 1: Place your cup in the middle of a tray and cover with sand. Make sure there is a hole at the top for the eruption. STEP 3: Fill your cup just over half full with water, add 3 tea spoons full of baking soda, food colouring and give it a good stir until most of the baking soda dissolves.
Using a hot glue gun, glue your empty spice container into the center of your smaller cardboard circle. Next, scrunch some newspaper or other paper into balls. Glue the paper around the spice container to create the shape of your volcano. Mix some paper mache paste.
Mix 6 cups flour, 2 cups salt, 4 tablespoons cooking oil and 2 cups warm water. The mixture should be smooth and firm. Add more warm water if needed. Stand the soda bottle in the baking pan and mold the dough around it into a volcano shape.
Instead of using vinegar, use ketchup with baking soda. This is perfect for a volcano effect because the ketchup is already the right color. You can also add liquid dish soap to create more bubbles and foam in the eruption.
For more of a contained mess try this Volcano:
Place the cup in the middle of the pan. Tear a large sheet of aluminum foil to cover the cup and lay at the bottom of the pan, creating the shape of the volcano. Poke a medium-size hole through the aluminum foil above the cup. This is where your volcano will erupt.
Put a card under the roll and on top of the bottle top, so you can pull the card and the candies will just drop in at once. Drop all of the Mentos into the bottle at the same time and then move out of the way just as quick as you can. Watch the eruption!
Assuming that you’re using the paper tube method, you’ll want to load the seven Mentos into the tube, cover the bottom of the tube with your finger, and position the tube directly over the mouth of the bottle. When you pull your finger out of the way, all seven Mentos should fall into the bottle at the same time.
To make a big eruption, use a small plastic bottle (the size 20-oz soft drinks come in works well). Fill the bottle halfway (1 to 1.5 cups) of vinegar. To start the eruption, drop a baking soda ‘bomb’ into the bottle—wrap one tablespoon of baking soda into a small piece of tissue paper, tying the ends with string.
Pour warm water and red food coloring into the volcano bottle until filled to the top. Add liquid detergent and baking soda. Pour vinegar in and take a couple steps back. The chemical reaction of the baking soda and vinegar will cause the “lava” to spew from the volcano.
First, add 1/3 cup of baking soda to your magma chamber (bottle). Then add about a teaspoon of dish soap for an extra foaming effect, and top it off with several drops each of red and yellow food coloring. Last, when you are ready for the action, pour in ½ to 1 cup of vinegar and watch the eruption.
Take one square of toilet paper and put 1 tbsp. baking soda in the middle of it. Roll it up and twist the ends to enclose the baking soda. When you are ready to present the project, drop the baking soda packet into the volcano, and watch it erupt.
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