Page 22 - SK Year 6 Science DLP

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Let
Let`s s
Try
Try Air Bags
To investigate the effects of different amounts of baking soda
Aim
on the volume of gas produced.

Problem Is the volume of gas produced inside the plastic bag influenced by
Statement the amount of baking soda used?

Apparatus Measuring tape, three ziplock bags, tissue, vinegar, and
and
Materials baking soda

Steps

1. Make your hypothesis.
2. Determine the constant, manipulated,
and responding variables.

3. Do this experiment in a small group.
4. Record the data from your observation.
5. Write a report of the experiment and
discuss it together with the other groups.

6. Plan another experiment to test a new
hypothesis from questions raised
in the discussion. CLICK

Baking soda mixed with vinegar
solution produces carbon dioxide,
water, and salt.

1. What did you observe?
2. What is the relationship between the amount of baking soda used and the
volume of gas produced?
3. Predict what will happen if the vinegar solution is replaced with water.

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