7 Cool Household Science Experiments

Seven fun and easy science experiments you can do at home.

Experiment 1:

Apple slices brown very fast, so how can you get them to stay fresh longer? Lemon Juice! Use a cotton swab dipped in lemon juice to keep the apple fresh longer. this is because the lemon juices acids stop the apple from reacting to the oxygen in the air that would normally cause the apple to go brown.

Experiment 2:

Ever had a ugly old penny that you want to see shiny again? Well with a bit of vinegar and some table salt you can! Mix 2 parts of vinegar, with 1 part salt in a cup. Then using tweezers dip the penny in the cup and leave it there for about 10 seconds, when you pull it out the penny should be shiny and new looking. This is because the vinegar and salt have acids that dissolve the dirt and stuff off of the penny causing it to be shiny and new looking again!

Experiment 3:

How do you keep stuff cold in a cooler, for a longer amount of time? Ever had a party and had a cooler filled with ice for pop and beer, but the cooler didn’t keep the drinks at an optimal temperature and all the ice melted and became warm? Well this is how to “freeze” that problem from happening. Take a cooler and fill it with lots of ice then add some water so the water fills the area between the ice. Now add a bunch of salt to the cooler (amount of salt varies between amount of ice ratio is approximately 5 cups of ice to 1 cup of salt) and the cooler will cool to a lower temperature, cool down beverages faster, and last longer. This is because the salt lowers the freezing point of the water allowing it to go cooler without freezing! Amazing!

Beverage Cooling Times:

  • Ice: 5-7 minutes
  • Ice and Water: 25-30 minutes
  • Ice, Water and Salt: 45-50 minutes

Experiment 4:

Ever wanted chicken bones that you could bend like rubber? Probably not but try this cool experiment anyway. Save a couple chicken bones next time you have chicken for dinner. Take of any meat, and leave them to dry for a couple of days, then coat the bones in vinegar and set them in a cup or jar, leave them for about a week before taking them out again, by then the bones should be bendable like rubber.

Experiment 5:

Make cool green slime out of every day kitchen ingredients. Mix 1 cup of corn starch and 1/2 cup of water with a couple of drops of green food coloring. After a while it should become slimy.

Experiment 6:

Remove an egg shell without cracking it. Take an uncooked egg, and but it in a cup, then fill the cup with vinegar until the egg is completely covered. Let it sit for 2-3 days then remove the egg from the glass. The eggs shell should have been dissolved by the vinegar and the outside of the egg should be all rubbery.

Experiment 7:

Colorful bottle. Fill a clear bottle 4/5 full of vegetable oil, then fill the rest of the bottle with food coloring. Shake and spin the bottle in different directions and watch the colorful water move through the vegetable oil. Like a lava lamp.

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22 Responses to “7 Cool Household Science Experiments”
  1. F Says...

    On July 28, 2007 at 10:28 am

    Wow, some of those are really cool.

  2. lol90 Says...

    On August 3, 2007 at 1:19 pm

    that was a awsome idea. especially the idea with vingear and salt. thank goodness finally to keep my stuff clean

  3. 43xjr Says...

    On June 22, 2008 at 3:42 pm

  4. 1212 Says...

    On August 2, 2008 at 6:22 pm

    i loved the salt and vingear experiment my mother will love having something that looks like it is bran new

  5. 1111 Says...

    On August 2, 2008 at 6:25 pm


  6. 5454 Says...

    On August 2, 2008 at 7:00 pm

    do u know what happens when u mix vingear and Sally Hansen no chip, 10 day nail color? Well when u mix them the nail polish expands and turns into a thin, flat, coat, of a stickness and when u stick a tooth pick into it and slowly turn it, then slowly move it up and down through the nail polish, it will begin to surrownd the tooth pick and make a coat of nail polish on the tooth pick.

  7. devin Says...

    On September 1, 2008 at 9:07 am


  8. John Says...

    On November 21, 2008 at 4:18 pm

    Love these experiments. I found more fun cool free experiments to do. I will post the link for anyone interested.


  9. michelle Says...

    On December 6, 2008 at 2:53 pm

    I love your site

  10. Nyx Says...

    On January 29, 2009 at 3:13 pm

    they’re all really awesome, before I really disliked the idea of doing a science project, but now when my dad found this I want to do ALL OF THEM XD just what we’ve been looking for!

  11. abcd Says...

    On March 29, 2009 at 2:54 pm

    i thought this website was cool..

  12. mmmm Says...

    On April 13, 2009 at 11:45 pm

    this stuff is reallly interesting…..but i hv a question…the citric acid in the lime juice will react with the mallic acid in the apple will it not?????????

  13. isabell Says...

    On May 15, 2009 at 10:29 pm

    all of it is cool i tried it.some worked.Im gooing to try the goo thing

  14. nunya Says...

    On May 25, 2009 at 9:03 pm

    so preschool

  15. U Says...

    On September 23, 2009 at 6:11 pm

    I’m going to post some of these as a demo to youtube very soon. “cameraonself”

  16. suppiersmrtgals! Says...

    On October 2, 2010 at 8:41 pm

    all these people are acting like there so smamart rt…i am the smarlt one here…daah

  17. Ellie Says...

    On March 6, 2011 at 5:35 pm

    In Experiment 6, the rules instruct you to remove an egg shell without cracking “it”. What does “it” mean?! How is that possible?!?

  18. nona Says...

    On March 13, 2011 at 4:36 pm

    thanks this helped me keep my little bro entertained

  19. Fred Says...

    On June 2, 2011 at 10:30 am

    I wouldnt really call then experiments. Theyre more like tips.
    With experenment i expect something like how to make gunpowder or other stuff.

  20. Conner Says...

    On August 31, 2011 at 12:26 pm

    “I wouldnt really call then experiments. Theyre more like tips.
    With experenment i expect something like how to make gunpowder or other stuff.”

    Oh, that’s easy, just like these. The powder from match-heads mixed with the powder from the igniting strip (the two are something like red phosphorous and potassium nitrate). Mixing them creates a mix much more volatile than gunpowder, so be careful (assuming the matches are good quality). I made a match-head cannon that fired a ball bearing with a HUGE puff of smoke this way.

  21. Jeannie Says...

    On May 19, 2012 at 3:34 pm


  22. 19203 Says...

    On May 19, 2012 at 3:35 pm

    some of these are SOOOOO lame

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