Hypothesis

What is a Hypothesis?

A hypothesis is an educated guess or proposition that attempts to explain a set of facts or natural phenomenon. We always write a hypothesis before conducting an experiment.

What is a Hypothesis? (cont.)

A hypothesis should always:• explain what you expect to happen• be clear and understandable• be testable• be measurable• contain an independent and

dependent variable

How to write a hypothesis?

To write a hypothesis, you need to consider the independent and dependent variables in the experiment. The scaffold below shows you how to phrase your hypothesis.

If the independent variable is (increased, decreased, changed), then the dependent variable will (increase,

decrease, change.)

How to write a hypothesis? (cont.)

Example Hypothesis:

If the amount of heat is decreased then germination will decrease.

In the example the independent variable is amount of heat, it will be decreased, then the dependent variable which is germination will decease.