Introduction to Ecology

Why do scientists use the scientific method?

• To make sure they get credit for their discoveries.

• To make sure their results are valid and can be performed by other scientists.

• So that other scientist don't get mad at them

True or False: Your hypothesis can never be wrong.

• True

• False

If plants are exposed to sunlight, then they will grow taller.
What part of the scientific method is this an example of?

• Procedure

• Hypothesis

• Question

• Results

What step does every scientific experiment begin with?

• hypothesis

• question/problem

• procedures

• conclusion

The independent variable is the ONE thing you _____.

• change on purpose

• control or keep constant

• measure

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect 

• independent variable

• dependent variable

• control variable

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, apple juice, or milk. What variables should be kept constant/controlled? 

• type of plant, flower pot,  soil, and amount of sunlight

• water, apple juice, milk

• only the amount of sunlight

• type of plant only

What is not the goal of science?

• to investigate and understand the natural world

• explain events in the natural world

• use data to support a particular point of view

• use explanations to make useful predictions

What is used to create a hypothesis?

• informed, creative imagination

• logical inferences

• prior knowledge

• All of the Above

A hypothesis must always be able to be what?

• tested

• proven valid

• disproved

• none of the above