Cool Science Experiments For Kids This site contains some science experiments for kids to do @home or school
  • scissors
    February 26th, 2010CTHuman Baisc Needs

    Hiya Kids… How was your winter ?

    I hope your guys have a lot showball fight… make lotta snowman…

    This time in CoolScienceExperimentsForKids.com, we gonna get ready for our annual science fair…!!!

    Don’t you guys just love it ๐Ÿ˜‰

    Now, let’s get to work…

    We will be needing these stuff:-
    1.Get yourself a eletrcic egg beater

    2.A big pail
    3.One big mosquito net or a mosquito screen.
    4.Some water (Hot water will be nice but becareful with it, ask adults to help out)
    5.Scissors
    6.You & Your Friends
    7.Old newspaper
    8.A Piece of wooden plank

    Optional Stuff:-
    8.Food Colouring


    Yeah… Let’s Get Our Hand Dirty! ^-^

  • scissors
    December 18th, 2009CTPressure

    Hey, kids.

    I found this nice video in YouTube

    So let the show begin…

    Why the egg fell into the bottle?

    Please leave your comment.

    Stay Tune…I will explain later.

  • scissors
    December 16th, 2009CTPressure

    Do you like the idea of having a plane all by yourselves.

    Well, after this Cool Science Experiments For Kids YOU CAN…!!!

    In fact, this a very simple experiment.

    All you need is: 2 PIECE OF A4 PAPER…!!! and a pair of scissors

    Hey kids, save a tree, save the earth, just find some used A4 paper. OK…

    By now. I think most of you know how to fold a paper plane.

    But, if you still in doubt below are the step by step guide. Just fold along the dashed line(s).

    You will need two paper plane for this experiments
    Plane 1 : Step 1 – Step 5
    Plane 2 : Step 1 – Step 6 (Kids, please take note. I have make some modification on our plane)

    Step 1 : Fold along the dashed lines, then open it out

    Step 1 : Fold along the dashed lines, then open it out


    Step 2 : Just fold along dashed lines and follow the arrows.

    Step 2 : Just fold along dashed lines and follow the arrows.


    Step 3 : Keep following the dashed llines and arrows

    Step 3 : Keep following the dashed llines and arrows


    Step 4 : Just follow dashed line and arrow again ;P

    Step 4 : Just follow dashed line and arrow again ;P


    Step 5 : You know what to do...

    Step 5 : You know what to do...


    Step 6 : There is a slight modification here, cut along the red lines

    Step 6 : There is a slight modification here, cut along the red lines

    Judgement Day…!!!
    Just fly your 2 private jets. Have a lot of fun.

    What happen ? :-

    Notice that:-

    Yeah...We Are Go Up...!!!

    Yeah...We Are Go Up...!!!

    Flight path of Plane 1 keep flying down.

    But, flight path of Plane 2 was up and down. This shows that how Bernoulli Principle works when a plane taking off.

    Explainations:-

    Side View Of Your Plane

    Side View Of Your Plane

    Bernoulli Principle Revisited

    Bernoulli Principle Revisited

    From the side view of your plane, you notice that the top surface is slightly curve upwards, while the bottom is flat. So when you fly your plane through the air, the air flow speed on top has to travel faster to cover a longer distance. The air flow below the wing is slower.

    Remember to what Mr. Bernoulli said, โ€œa steady flow of fluid (gas or liquid), the pressure of the fluid decrease when the velocity(speed) if the fluid increaseโ€

    Ah…forget it!!!

    In the case of your plane, the air flow on top of the wing is faster, therefore creating a lower pressure region on top of the wing. While the slower air flow under the wing creates an higher pressure region. Thus, the higher pressure helps the plane to take off or flying upwards.

    For more flying actions…!!!

    Flights of nearly 300 feet are possible…!!! Kids, 300 feets…!!! A bit hard on taking off. But, you can go 500 feets with the plane…!!! The Dark Force…!!!
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  • scissors
    November 14th, 2009CTBiology

    What?!!!

    A fish can live without water…!!!

    Yes, kids. This how wonderful our earth is.

    Let me introduce you to Mr. Lungfish.

    A South American Lungfisg. Found this from http://www.ucmp.berkeley.edu/vertebrates/sarco/dipnoi.html

    A South American Lungfisg. Found this from http://www.ucmp.berkeley.edu/vertebrates/sarco/dipnoi.html

    Today, we can fonly find lungfish in Africa, South America and Australia.

    So, what make this fish so special that is can survive without water.Some lungfish can survive in dried up rivers for weeks or months.

    Well, in waters lungfish use their gill to respirate or breathe. If the rivers dried up, the air will go throughh a lunglike organ called a swim bladder. This is because the swim bladder consist a lot of tiny blood capilary or in general terms blood vessels which act as lungs. (As we all know, ๐Ÿ˜‰ exchanges of oxygen and carbon dioxide happen in our lungs). Thus gas exchanges happen in this swim bladder thingy and our lungfish friend can keep pon surving without waters.

  • scissors
    November 10th, 2009CTForce

    Yo, kids. Is Cool Science Experiments For Kids again.

    This time around we gonna go through walls…

    Hello…, doc. How can you going through the wall…!!! This ain’t no magic.

    No worries guys. This is pure science. I will explain it later, But now, is better to get our hands dirty.

    Let’s prepare the material for this experiment:-
    a) a marble, if you wanna have more fun then a few
    b) a coin make it is big enough to cover the mouth of the bottle
    c) a piece of paper (11cm x 30cm)
    d) a soda bottle
    e) a cellophane tape

    Just follow these steps:-
    1. Roll the piece of paper, use the cellophane tape to make sure it holds. Now, we will have a 30cm tall cylinder shape paper roll.
    2. Put the coin on the mouth of the soda bottle.
    3. Next, we put the paper onto the mouth of the soda bottle.
    4. The moment of truth, put the marble on top of the paper roll and let it fall…
    Can the marble fell into the soda bottle ? ๐Ÿ˜‰
    5. What happen?… Something strange ? (Yes, the marble went in the bottle)

    Explanations:-
    Newton’s Third Law states that:
    If object A exerts a force on object B, then object B will exert an equal but opposite force on object A.

    Or like your teacher always say

    “To every action there is an equal but opposite reaction”

    In this experiments, when our marble hits the coin, the coin will produce any equal but opposite reaction/foce onto the marble, making the marble bounce back. The hitting force on the marble will causes the coin to temporary leaving the mouth of soda bottle. Thus, resulting the morble fell into the soda bottle.

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