4 Scientific experiments to do at home with children
Do
your children like science? Make with them these fun and simple
homemade scientific experiments. Learning does not have to be boring,
and here are four ideas that prove it.More Go Here science for kids
1. Dance worms
materials
- Gummy worms
- Baking soda
- Vinegar
- Water
- 1 clear glass
Instructions
First
cut the worm lengthwise into four pieces and place them in a glass full of warm
water with three tablespoons of baking soda for 15 minutes.
Then
remove the worms from the glass with a fork and place them in another glass
with vinegar. In a matter of seconds, the worms will begin to cover
themselves with bubbles and rise twisting towards the surface.Here easy science.
Explanation
When
the worms impregnated in sodium bicarbonate and the vinegar come together, a
chemical reaction occurs that causes the formation of gas bubbles (carbon
dioxide) around the rubber worm, which immediately rises to the surface.
Once
the gas bubbles burst, the worm falls down and is covered again with bubbles
that make it rise again, and so on until one of the two reagents (bicarbonate
or vinegar) is used up.
2. Crystal letters
materials
- Pipe cleaner
- Thread
- Wooden stick (or pencil)
- Scissors
- Medium plastic container
- Measuring jug
- Spoon
- Food coloring (optional)
- Borax powder or sodium
percarbonate (it is a common component in soaps and detergents and can be
found in supermarkets).
Instructions
First,
shape the pipe cleaner to make the letters of your name. Tie it with a
thread and tie the other end to a wooden stick.
Heat
a pot of water until it boils. With the help of a measuring jug, pour
750ml. of hot water in a medium plastic container, add 9 tablespoons of
borax or sodium percarbonate and dissolve it (3 tablespoons per 250ml of
water).
Finally,
introduce the pipe cleaner with the shape of your name in the liquid without it
touching either side and leave it suspended inside overnight to form the
crystals.
* So that your glass name is colored, you can use colored pipe
cleaners or add food coloring to the water with borax to dye it.
Explanation
When
the borax is dissolved in water a suspension is created, that is, a mixture of
solid particles (the borax) that are large enough for sedimentation. Over
time the borax begins to settle and crystallize on solid surfaces, forming a
layer of glass around the pipe cleaner.More about know go here science experiments
for kids.
3. Liquid rainbow
- materials
- 1 glass boat
- Honey
- Green dishwashing liquid soap
- Olive oil
- Water
- Alcohol
- Food coloring
- 1 dropper
Instructions
First
pour the honey into the glass jar (without touching the sides) and then add the
green dishwashing liquid soap. Then mix water with food coloring (blue or
purple, for example) and pour it over the dishwasher, being careful not to
touch the sides. Continue adding a thick layer of olive oil always in the
center of the bowl.
Finally,
mix the alcohol with red food coloring, but be careful! Do not pour it in
the center like the previous ones. If you do, alcohol can pass through the
oil layer and reach the water layer stained blue or purple, and your rainbow
will break down. To avoid this, use a dropper to let the alcohol drain
through the inside of the boat.
Explanation
The
explanation of this experiment is very simple, the key lies in the density of
the different liquids.Denser liquids weigh more, and therefore remain at the
bottom, and lighter ones remain at the top.In addition, having a different
density, the liquids do not mix and in this way this beautiful rainbow is created. fun science
4. Magic balloons
materials
- 2 empty plastic bottles
- 2 bottles of soda with gas
(Coca-Cola)
- baking powder
- 1 teaspoon of sugar
- Vinegar
- Sodium bicarbonate
- Peta Zetas
- Mint mints
- 1 funnel
- 4 balloons
Instructions
We
end our science workshop with a very fun experiment in which the chemical
reaction of four different combinations in four bottles is compared, which
balloon will swell more?
In
the first bottle pour a stream of warm water to fill the
bottle two or three centimeters, add an envelope of baking powder and stir well
until dissolved. Then add a spoonful of sugar, stir again and cover the
nozzle of the bottle with a balloon.
In
the second pour a stream of vinegar to fill five or six
centimeters of the bottle, add baking soda to cover half of the vinegar, and
place a balloon on top.
For
the third option, take a full soda bottle, empty half and add
an envelope of Peta Zetas. Cover it quickly with a balloon and wait.
For
the fourth and final experiment, empty half of a soda bottle,
introduce 3-4 mint mints inside and cover the mouthpiece with a balloon.
What
chemical reaction is the strongest? The answer is option two, vinegar with
bicarbonate is the one that manages to grow the globe more know here science experiments
for kids.
