Bouncing Ball Investigation

Bouncing Ball Investigation

Aims:

In This experiment, I'm going to discover how the surface affects the

height that a of a tennis ball

Introduction:

All green plants are able to use light as a source of energy.

Chlorophyll (green coloured pigment in leaves) absorbs light and

changes it into chemical energy, which is used to power all the

chemical reactions that go on in a plant cell. This is called

photosynthesis.

Photosynthesis is the process of producing glucose from sunlight,

which takes place in the leaves. The 3 features of the leaves are:

1) They are thin and flat to provide big surface area.

2) Te palisade cells near the top of leaves are packed with

chloroplasts.

3) Te Guard cell controls the movement of gases going in and out.

The four things needed for photosynthesis are: Light energy,

Chlorophyll, carbon dioxide and water.

The rate of photosynthesis is affected by the following reasons: the

amount of light energy, the amount of carbon dioxide and the

temperature. Carbon dioxide gets into the leaves by diffusion through

the tiny holes under the leaf called stomata. Diffusion is a vital

part of photosynthesis because if carbon dioxide couldn't get into the

leaves photosynthesis would not occur.

Photosynthesis also releases the gas, oxygen. Plants are the most

efficient converts of the sun's energy and all other living organisms

depend on them as a source of life.

The equation for photosynthesis is: 6CO2+6H2O> C6H12O6+6O2

Hypothesis:

My prediction for this practical is that the harder the surface, the

higher the ball will bounce. The softer the surface, the lower the

ball will bounce.

Equipment:

· 1 Tennis Ball

· 1m Rule

· Different Surfaces

Equipment Set up:

Safety:

· Do not throw the ball around, as it may injure someone.

· Only drop the ball when not many people are around.

· Basic lab rules apply

In this experiment there are only few dangers, such as ball might