วันอังคารที่ 22 กุมภาพันธ์ พ.ศ. 2554

Science Experiments For Kids

In high-school science was always one of my favorite subjects. I was one of those students always pestering the teacher with questions about why stuff happens. As I was cleaning out some of my stuff last week, I found a collection of my science experiments for kids. As they don't really help me anymore, I have decided to post a couple here.

So here are some of my science experiments for kids

Baking Soda and Vinegar Rocket

Equipment -


  • Baking Soda



  • Vinegar



  • A one liter Bottle



Method -


  1. Fill the bottle with about an inch of vinegar



  2. Fill a small bag with baking soda and loosely seal it



  3. Put the bag in the bottle



  4. Put the lid on the bottle



  5. Shake for 5-10 seconds



  6. Throw and run!




Baking Soda Volcano

Equipment -


  • 6 cups flour



  • 2 cups salt



  • 4 tablespoons cooking oil



  • Plastic soda bottle



  • A deep dish



  • Warm water



  • Red food coloring



  • Detergent



  • 2 tablespoons baking soda



  • Vinegar



Method -


  1. Mix 6 cups flour, 2 cups salt, 4 tablespoons cooking oil, and 2 cups of water to get a smooth and firm mixture



  2. Stand the bottle in the dish and mould the mixture into a volcano shape. Do NOT cover the hole or allow anything inside it



  3. Fill the bottle about 2/3 of the way with warm water that has had red food coloring in it.



  4. Add 6 drops of detergent into the bottle



  5. Add 2 tablespoons of baking soda



  6. Slowly pour vinegar into the volcano



  7. Watch




Invisible Ink

Equipment -


  • Baking Soda



  • Paper



  • Water



  • Paintbrush or Swab



Method


  1. Mix equal portions of baking soda and water



  2. Using the paintbrush, write a message on paper, using the mixture



  3. Allow time to dry



  4. Hold the paper near something hot (like a light bulb) to make the ink turn visible




Ben Barclay has had lots of experience with science during his many studies and loves to blog about it on his website http://scienceexperimentsforkids.googlepages.com/home which is highly recommended to all

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