Easy Science Project an Elementary Student Can do all
by themselves
You will need the following items: Pie plate,
Milk, Food Coloring, A Q-tip, Dishwashing Detergent
You are going to see if the oil, milk and soap will mix or what
happens.
There is the liquid which is the milk.
We add the oil and in this case it is the colored food coloring
to see just where the oil goes. Then we have the soap
detergent.
When we pollute our rivers and oceans some
chemicals mix with the water and we cannot see them and other
products do not mix with water but what happens when you have a
combination of items, like some that don't mix with water and
some that do. Does it cause a reaction that will make all
the liquids combine in a new way. What does this do to our
waters?
Put milk into the pie plate - just enough
to cover the bottom.
In the center put 3 drops of red food
coloring. Next to that put 3 drops of green food coloring.
Put the drops right on top of each other. Next to the
green put 3 drops of yellow food coloring and next to that put 3
drops of blue food coloring. You should have 4 big dots of
food coloring forming a small circle in the middle of the milk.
Now put the end of your q-tip in the middle
of the food coloring and hold for 5 seconds and remove.
Put a drop of dishwashing liquid on that
end of the q-tip that was just in the milk.
Now put that end of the q-tip back into the
middle of the colors.
What Happens? Hold it there for about
10 seconds then remove. Put the same end back into the
milk where the most color has moved to. Now what happened?
Pick it up again and keep putting the same end into the large
area with solid color.
Do you see how the soap makes the oil
dissipate.
Science Experiment for Thought:
If you use a tarnish remover on a brass or
copper substance the gray material will be removed usually by
the towel you have rubbed along with the remover onto the
surface.
What happens when you place the now clean
copper or brass object into vinegar or lemon juice?
The object will probably start to develop
tarnish again.
Let's test this theory.
See if you can ask your parents to use a
few silver forks or spoons that have tarnished. Ask for a
tarnish remover material and proceed to clean it from the spoon
with a soft cloth.
After you are finished take 2 bowls and in
one bowl pour in white vinegar and in the other bowl pour in
lemon juice.
Place your two clean spoons or forks into
each bowl.
Let them sit overnight. In the
morning remove them and make visual observations. Did the
vinegar or lemon juice or both cause the tarnish to reappear on
the spoons?
Why did this happen?
Why did one of the liquids make more
tarnish than the other liquid?
Now get a bowl and put tomato juice into
it.
Place the spoons into the tomato juice and
let it sit on the counter all day. At the end of the day
remove the spoons and wipe them clean. Did the tomato
juice remove any tarnish? Why do you think that happened?
If acid is your answer for why the vinegar
turned the spoons black and also why the tomato juice clean them
were there different types of acid or a different type of
reaction because of something else in each of these substances?
© 2006 Fetching Science Projects. All rights reserved.
Easy Science Project
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