CHEMICAL
YO-YO
Materials: soda,
vinegar, oil, food coloring, jug, glass, syringe or pipette
What to do:
- Pour vinegar into a glass, then add food coloring to it
- Add one baking soda to the jug, then gently pour oil into it
- Take coloured vinegar with a pipette or syringe and gradually drip it into the jug
Result
The
drops of colored vinegar drop into the jug with oil and soda and
slowly sink to the bottom. They settle on the surface of the soda and
there is a reaction. As a result of the combination of vinegar (acid)
and soda (base), gas - carbon dioxide (CO2) is formed, which
surrounds droplets of vinegar and they become lighter and rise. When
our droplets rise to the surface of the oil, the gas escapes and the
heavier drops fall back to the bottom and the reaction repeats.
MAGIC
MILK
Materials:
milk, dish soap,
q-tips, food coloring, shallow plate
What to do:
- Fill the plate with milk.
- Add different colors of food coloring
- Generously dip the end of a q-tip in dish soap.
- Dip the q-tip into the milk next to a drop of color.
Result
The
molecules in the dish soap are attracted to the fat molecules in the
milk. As soon as you introduce the soap to the milk/coloring mixture
the molecules race around trying to bond. The food coloring gets
pushed around in the process and appears to burst. Eventually the
molecules all bond and the reaction stops.
FAKE
SNOW
Materials:
8 packages (80 grams x 8) of baking soda, shaving cream, bowl
What to do:
- Pour baking soda into a bowl.
- Add some shaving cream and mix it with baking soda.
- Add more shaving cream, mix and repeat until the mixture is the consistency of snow
- Leave the "snow" in the fridge for one hour
Result
This "snow"
will give your child a lot of joy. Making snowballs, playing with
favourite toys in the snow is a great sensory experience. Kneading
and forming enriches manual skills and streamlines fine motor skills.
It perfectly affects children's imagination.
RUBBER EGG
Materials: boiled
egg (with shell), glass, vinegar.
What to do:
- Pour vinegar into a glass
- Put the egg into the glass with vinegar
- Leave the egg for at least 24 h
- Take the egg out of the vinegar and rinse it with water.
Result
The shell will
rub off. The eggshell is made of calcium carbonate. Vinegar ‘eats
up’ the calcium carbonate in the egg shell and the egg becomes soft
and gummy.
Autor: Justyna - Absolwentka studiów licencjackich na Uniwersytecie Warszawskim na kierunku
Pedagogika małego dziecka o specjalizacji: edukacja przedszkolna i
wczesnoszkolna z wczesnoszkolnym nauczaniem języka angielskiego.