LESSON 1. Early
Concepts of Matter
Problem:
Can you mix the four elements of earth, air, fire and water?
Materials:
10 ml graduated cylinder,
250
beaker, oil, water, sand,
Bernoulli pipe, candle, touch paper, magnesium
ribbon, matches
PROCEDURE:
-
Pour 5 ml of oil in 5 ml of water. What
happens?
Mix it. Describe
-
Pour 5ml of sugar in 10ml of water.
What happened?
-
Pour 50 ml of water into 50g of sand.
Pour off some of the water. What happens?
-
Place a test tube in a bucket of
water. Once it stands straight up carefully remove the test tube from the
water. (do not shake or move or this will not work) Describe and try to
explain what happened.
-
Blow up a
balloon, then place it on the end of the Bernoulli pipe and let go.
What happens?
-
Strike a match
and watch it burn. Blow it out. What caused the match to burn?
-
Strike a match
and light a small candle. What makes it burn?
Put a beaker over it. Describe
Do as demonstration
-
a. Cut pieces
of wax paper touch paper, construction paper and regular paper into 2cm x
10cm pieces.
b. While holding the paper with a
test tube clamp, light it with a match.
c. Record the amount of time that it takes to burn.
d. Repeat steps b and c for each piece of paper.
-
Measure out a
5cm piece of magnesium ribbon, light it with a lighter and carefully watch
the reaction. What happened?
Conclusion:
Based on your observations how did the elements react with each other?
Was
there any specific thing that did not mix well with others?
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