First investigation in science the relationship between height and a ball and how to write a scientific investigation.

Next week we are going to do our first ever investigation in science! It is about the relationship between the height a ball is dropped and the height of the balls first bounce. This experiment is mostly to help us with learning about scientific investigations and how to write a scientific report. A scientific investigation starts with a aim. What is the goal of your investigation. My aim in this investigation is to:

Discover the relationship between the height the ball is drops and the balls first bounce once it lands.

Next in a scientific report is a hypothesis. A hypothesis also known as a educated guess is your prediction of what the result will be in your investigation. My hypothesis is this:

I think the ball might bounce about half the height it was dropped.

Next is the method along with the equipment you used. This bit is important since it explains how you did it. This bit explains the data you get and why you got it. 

The equipment I am using: Metre ruler, tennis ball (or another appropriate ball), retort stand, boss head and clamp.

To do this i'm going to measure a certain high then drop the ball from that height then measure the height it bounced. Ill start at a shorter height then start going higher up to complete my aim.

Key variables: What are variables? A variable is something that can affect the result of your experiment. When carrying out a experiment all variables (except the one you are testing) should be kept the same these are called control variables. The one you are testing is called the independent variable and is the only one that should be changed during an investigation. The dependent variable is the one you measure. Here are the variables in this experiment.

Dependent: The bounce and the height of were it was dropped

Independent: The balls height

Control: The ball

This is the first half of the scientific investigation/report. Next you would conduct your experiment!