Question

A theory is an important part of science because it can be used to A. Create better questions B. Create better experiments C. Test a hypothesis D. Make predictions
A student designed an experiment to test the affect of salt on the number of plants that live in water. What is the dependent variable in this experiment? A. The water B. Water temperature C. The number of plants living in the water D. The amount of salt in the water
What is an appropriate way to analyze the results of an experiment A. Creating a graph B. Creating a data table C. Making observations D. Asking questions
What is a control group used for? A. Making an observation B. Making a comparison C. Designing an experiment D. Making a hypothesis

What I had was #1 D #2 A #3 B #4 A

Answer 1

Answer:

I got

1 = B

2 = D

3 = C

4 = B

Explanation:

With a theory, you can have a better understanding of your experiment and know what to do specifically.

The amount of salt in the water is dependent because if you were to put too much salt or too little salt in the water, it was make a difference.

I either chose C or D but I think C fits better with what you have to keep a look out for while analyzing an experiment.

A control group is basically like this:

Plant A has food coloring (Experimental Group)

Plant B has no food coloring (Control Group)

After a few days you look at the comparison of both plants (of course with the equal amount of sunlight and water and temperature.)

Answer 2

A theory is an important part of science because it can be used to: B. Create better experiments.

What is a theory?

In Science, a theory can be defined as a carefully thought-out explanation of an aspect of the natural world which has been repeatedly tested and verified through the following:

• A large number of independent experiments.

• Observations

• Evidence (facts)

• Measurements, evaluation, and analysis of test results.

This ultimately implies that, a theory can only be formulated when a hypothesis has been verified by a large number of independent experiments and supported by factual evidences, with similar outcomes.

In conclusion, a theory is generally considered to be an important part of science because it can be used to create better experiments under controlled conditions.

Read more on a theory here: https://brainly.com/question/24564835