8 Totally Cool Science Experiments For Kids

Summer is the perfect time to try some cool new science experiments with the kids. Using items from your pantry and refrigerator you can begin to explore all the wonders of science.

Tornado In A jar

  1. Fill the jar 3/4 full of water.

  2. Put in one teaspoon of vinegar and one teaspoon of dish soap.

  3. Sprinkle in a small amount of glitter.

  4. Close the lid and twist the jar to swirl the water and see a vortex like a tornado form in the center of the jar.

Rainbow Milk Firework

  1. Pour milk in dish (enough to cover the bottom).

  2. Squeeze droplets of food coloring on milk.

  3. Dip Q-tip in liquid dish soap, then touch the milk.

Lava In A Cup

  1. Gather materials. A clear drinking glass, 1/4 cup vegetable oil, 1 teaspoon salt, water, food coloring (optional)

  2. Fill the glass about 3/4 full of water .

  3. Add about 5 drops of food coloring – I like red for the lava look.

  4. Slowly pour the vegetable oil into the glass.

  5. Now the fun part: Sprinkle the salt on top of the oil.

  6. If you liked that, add another teaspoon of salt to keep the effect going.

Plastic Milk

  1. One cup of milk, 4 teaspoons of white vinegar, A bowl, A strainer

  2. Ask your friendly adult to heat up the milk until it is hot, but not boiling

  3. Now ask the adult to carefully pour the milk into the bowl

  4. Add the vinegar to the milk and stir it up with a spoon for about a minute

  5. Now the fun part, pour the milk through the strainer into the sink – careful it may be hot! Left behind in the strainer is a mass of lumpy blobs. When it is cool enough, you can rinse the blobs off in water while you press them together . Now just mold it into a shape and it will harden in a few days. – Cool!

Ice Cream In A Bag

  1. 4 oz of milk, 4 oz of cream, 1/4 tsp of vanilla (or use other flavors – you can use chocolate syrup for chocolate ice cream), 4 tsp of sugar, Lots of ice, 1/2 cup of salt. Rock salt works best, Small (quart size) zip-lock freezer bag, Large (gallon size) zip-lock freezer bag

  2. Put the milk, cream, flavoring, coloring, and sugar into the SMALL zip-bag and zip it shut (be sure it is zipped up and closed completely)

  3. Put about a cup of ice into the large bag and the cover the ice with a small handful of salt. Put the small bag with your ingredients into the larger bag.

  4. Add some more ice and then some more salt. Keep adding salt and ice until the bag is almost full.

  5. Zip it shut (be sure it is zipped) and then carefully hold opposite sides of the bag and shake the bag back and forth (like your steering a car) for about 5-8 minutes.

  6. Open the larger bag and take out the smaller bag – it should be full of ice cream! Rinse off the bag under running water to remove any salt that may be near the opening of the bag.

  7. Open and enjoy!

Elephant's Toothpaste

  1. A clean 16 ounce plastic soda bottle or a water bottle, hydrogen peroxide liquid, 1 Tablespoon of dry yeast, 3+ Tablespoons of warm water, Liquid dish washing soap, Food coloring, Small cup, Funnel, Safety goggles (The foam could overflow from the bottle, so be sure to do this experiment on a washable surface, or place the bottle on a tray.)

  2. Use a funnel to carefully pour 1/2 cup (118 ml) of the hydrogen peroxide liquid into the bottle

  3. Add about 10 drops of your favorite food coloring into the bottle.

  4. Add about 1 tablespoon (15ml) of liquid dish soap into the bottle and swish the bottle around a bit to mix it.

  5. In a separate small cup, combine the warm water and the yeast together and mix for about 30 seconds. It should be about the consistency of melted ice cream – add a bit more warm water if needed.

  6. Now the adventure starts! Use the funnel to pour the yeast-water mixture into the bottle and watch the foaminess begin!

Bend A Bone

  1. A jar large enough to fit a chicken bone, a chicken bone – a leg or “drumstick” bone works best and vinegar

  2. Rinse off the bone in running water to remove any meat from the bone.

  3. Notice how hard the bone is – gently try bending it. Like our bones, chicken bones have a mineral called calcium in them to make them hard.

  4. Put the bone into the jar and cover the bone with vinegar. It might be a good idea to put the lid on the jar or cover it – let it sit for 3 days.

  5. After 3 days remove the bone. It should feel different. Now can rinse it off and try bending it again. Is it really a rubber bone?

Rock Candy

  1. For each candy you will need a wooden skewer (you can also use a clean wooden chopstick, a clothespin, 1 cup of water, 2-3 cups of sugar and a tall narrow glass or jar.

  2. Clip the wooden skewer into the clothespin so that it hangs down inside the glass and is about 1 inch (2.5 cm) from the bottom of the glass. (as shown)

  3. Remove the skewer and clothespin and put them aside for now.

  4. Get a helpful adult!

  5. Pour the water into a pan and bring it to boil.

  6. Pour about 1/4 cup of sugar into the boiling water, stirring until it dissolves.

  7. Keep adding more and more sugar, each time stirring it until it dissolves, until no more will dissolve. This will take time and patience and it will take longer for the sugar to dissolve each time. Be sure you don’t give up too soon. Once no more sugar will dissolve, remove it from heat and allow it to cool for at least 20 minutes. NOTE: While it is cooling, some people like to dip half of the skewer in the sugar solution and then roll it in some sugar to help jump start the crystal growth. If you do this, be sure to let the skewer cool completely so that sugar crystals do not fall off when you place it back in the glass.

  8. Have your friendly ADULT carefully pour the sugar solution into the jar almost to the top. Then submerge the skewer back into the glass making sure that it is hanging straight down the middle without touching the sides.

  9. Allow the jar to fully cool and put it someplace where it will not be disturbed.

  10. Now just wait. The sugar crystals will grow over the next 3-7 days.

Want colored rock candy? Add food coloring to your sugar water and make sure sure that it is pretty dark in color for the best result.

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