Fun & Easy Science for Kids
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Free Science Fair Project for 4th Graders Facts for Kids Video


                                                Science Fair Project

This fun video is about a 4th grade science fair project about chemical reactions. The experiment will demonstrate in this project what actually happens when you put Mentos on a diet cola.

Materials Required: –

  • A diet cola
  • Mentos
  • Geyser tube

Procedure: –

  • Make sure you perform this experiment outside in an open area.
  • For this, stick with the original mint flavoured Mentos.
  • Open the bottle of diet cola and place it on the ground so that it does not tip over.
  • Place 7 mentos in the geyser tube and insert a pin at the bottom of the tube.
  • This pin works as a barrier between the mentos and the bottle.
  • Now, your goal is to drop all 7 mentos in the bottle at the same time.
  • Take the pin out of the geyser tube and run away.
  • You will see an amazing eruption of soda.

Concept: –

Soda pop is made of sugar, water, flavour and preservatives. The thing that makes it bubbly is the invisible carbon dioxide gas. Mentos mints have tiny pits on their surface. These pits act as nucleation sites.



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Declan, Tobin. " Fun Science Fair Project for Kids ." Easy Science for Kids, Jul 2020. Web. 08 Jul 2020. < >.

APA Style Citation

Tobin, Declan. (2020). Fun Science Fair Project for Kids. Easy Science for Kids. Retrieved from

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