Science Experiments - Four Fun Science Experiments For Kids to Do at Home

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					Science experiments that you can carry out with kids at home should not
and need not be expensive. Science is a great practical subject and one
you can have a lot of fun with whether you homeschool or not. Science
experiments are a great way to spend some quality fun time with your
child or children and have fun learning with them. I have chosen four
experiments that you can do easily using equipment and resources commonly
found in most homes.Experiment One: Sink or FloatUsing a sink or bucket
outside if you prefer fill with water leaving approximately 5cm empty.
Collect some common objects e.g. a nail, pencil, raw egg, ruler, apple,
toy boat, paperclip and a rubber Ball. Draw up a table with 3 columns
with the headings ITEM, SINK and FLOAT. Predict whether the item will
sink or float in one colour or with a tick. Place each item slowly into
the water and record on your table what actually happens (use a different
colour or cross). Try some different objects and add them to your list -
do you get better with your predictions? When you finish the experiment
try using a science book or website to investigate why you got the
results you did for each object.Experiment Two: Quick Grip ReflexAll you
need for this experiment is a ruler (preferably 30cm), pen and paper and
one or more friends.1) Grasp the ruler with your thumb and forefinger at
the end with the highest measurement.
2) Hold the ruler at head level with your arm extended away from your
body.
3) Ask one of your friends to try to catch the ruler with their fingers
as you drop the ruler.
4) Your friend positions their thumb and pointer finger (slightly open)
at the lower end of the ruler.
5) Release the ruler and get ready to record their results.
6) Write down the measurement where your friends thumb grabbed the ruler.
7) Try this with the rest of your friends and record their results.
8) Now let one of your friends hold the ruler and let you have a go.Who
had the quickest reaction? The person who catches the ruler at the lowest
end of the ruler has the fastest reflexes. Which sense are you using to
try and catch the ruler? Hint: SightExperiment Three: VolcanoUse can use
baking soda and vinegar to create an awesome chemical reaction! You will
need some baking soda (important to make sure it's not baking
powder),vinegar, a large container and a cloth or some paper towels just
in case you make a big mess! Perhaps consider this as an outside
activity!Instructions:1. Place some of the baking soda into your
container.
2. Pour in some of the vinegar
3. Watch as the reaction takes place!What's happening? The baking soda
(sodium bicarbonate) is a base while the vinegar (acetic acid) is an
acid. When they react together they form carbonic acid which is very
unstable, it instantly breaks apart into water and carbon dioxide, which
creates all the fizzing as it escapes the solution.Why not have a go at
making a volcano using your craft skills and give a volcano demonstration
at a science fair - don't forget some red food colouring to be really
impressive!Experiment Four: Raw or Boiled Egg?How do you tell the
difference between an egg that is raw and one that is hardboiled without
breaking them? Answer: It's all in the gravity! For this experiment you
will need two eggs, one hard-boiled and one raw of course. Make sure that
the hard-boiled egg has been in the fridge long enough to be the same
temperature as the raw egg or your experiment may not work
properly.Instructions:1. Spin the eggs and watch what happens, one egg
should spin while the other should wobble.
2. You can also try lightly touching each of the eggs while they are
spinning, one should stop quickly while the other will keep moving after
you have touched it.What happened? The raw egg's centre of gravity
changes as the white and yolk move around inside the shell, causing the
wobbling motion. Even after you touch the shell lightly it will continue
to move. This is because of inertia causing the raw egg to spin even
after you have stopped it. In contrast the hard-boiled egg spins rather
than wobbles and will stop when you touch it because of the solid white
and yolk.Older children can be encouraged to write up their experiments
in a notebook by writing an equipment list, a method, recording their
results and then writing a discussion to explain what happened.

				
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