Preschool Kitchen Experiments

Use these easy preschool kitchen experiments to help your child begin to understand basic science concepts.

These are to be done of couse with an adult leading the activity and direct supervision.

1.Baking soda and vinegar: watch the eruption!

3 tsps Baking soda
1/2 to 1 cup white vinegar
Food coloring
Put the baking soda into the cup. Mix the food coloring with the vinegar in a separate cup. Pour the vinegar/food coloring mixture into the cup and watch the eruption!
When the vinegar and baking soda is mixed together, harmless carbon dioxide gas is given off in the process.

2.Cornstarch and water:is it wet or is it dry?

1 cup cornstarch
1/3 cup water
5 to 7 drops food coloring (optional)

Mix water and food coloring together. Slowly add cornstarch. Do not stir. Let the mixture stand for 1 to 2 minutes. Pick up a handful of the oobleck and squeeze it until it forms a hard ball. Open your hand and the oobleck will turn from a solid ball back into a liquid.

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3.Dish Detergent and Pepper

1. Fill the bowl with water
2. Sprinkle some pepper on the water
3. Dip your finger in the water (to note that nothing special will happen)

Now for the fun part,

4. First, dip your finger in the liquid soap
5. Then dip your soapy finger into the bowl of water with pepper.
6. Watch as the pepper "magically" backs away from your finger

The scientific explanations:
The soap breaks the surface tension of the water, like popping a balloon. It is the water that moves, not the pepper that is floating on it.

4.Pancakes Rising

Make some pancakes and with the last little bit of batter add an extra Tbsp of baking powder to see the effect on that pancake.

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5.celery and food coloring
Place a stalk of cut celery in a glass with a little water and about 1 tsp. of food coloring. Watch what happens the next day.

6.Vinegar and salt:shine your pennies!

Young children like to save pennies, and the shiny ones are extra special. With the help of two chemicals from the kitchen, salt and vinegar, all their pennies can shine like new. Neither salt or vinegar alone will remove tarnish,but combined, they work like magic. This is a fabulous activity for children who love to mix and stir and experiment. They will be so pleased with the results!

Prepare 4 bowls with the following chemicals(label each bowl):
1. 2 Tbsp vinegar
2. 1 tsp salt
3. 1 tsp salt and 2 Tbsp water
4. 1 tsp. salt and 2 Tbsp. vinegar

Add a penny to each bowl.
Observe what happens after 5, 10, 15 minutes.
The key to this activity is cause and effect. There are reasons why chemists combine certain chemicals.
Three of the containers do a poor job of penny cleaning, one is excellent.
After the cleaning has occurred, talk about what happens, then allow your preschoolers to clean their pennies

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