Is a small amount of bias acceptable in scientific endeavor

Carlo is wondering what causes plants to grow at different rates. carlo’s hypothesis is “plants will grow more when the day is longer.” what would be the difference between the test group and the control group in this experiment? type of soil type of plants exposure to sunlight method for measuring the growth

Explain how earth is like a giant bar magnet. how is our magnetic field made?

What undergraduate degree can a student earn at a four-year college (not specific to a field of study)?