Question

A student wants to investigate how changing the amount of light in the room affects how earthworms burrow. She takes 20 worms and divides them into 2 groups. The 10 worms in group 1 are left with the normal room lights on. The 10 worms in group 2 are left with half of the lights turned off. The worms were all the same species, the rooms were all at the same temperature, both worm containers were the same, and both groups were given the same about of food and water. The average number of tunnels in the soil was recorded for 5 days. The data in the table below was collected.

What is an appropriate HYPOTHESIS for this experiment? Remember to use the "if" "then" format.

Answer 1

The hypothesis for the experiment on how light levels affect earthworm burrowing is that if the light is reduced, then worms will create fewer tunnels due to their preference for darker environments.

Step-by-step explanation:

An appropriate hypothesis for an experiment investigating how changing the amount of light affects earthworm burrowing behavior would be:

If the amount of light in the environment is reduced, then earthworms will create fewer tunnels, as earthworms tend to avoid light and are more active in darker conditions.

This hypothesis is based on the behavior of earthworms, which are known to be sensitive to light. The hypothesis suggests that a lower light environment would lead to increased burrowing activity, which can be measured by the number of tunnels created in the soil.