How do scientist collect data?

Answer 1

Scientific investigation is based on observations. Observations refer to any information we collect about the

physical universe using our senses (sight, sound, smell, taste, and touch.) The factors or conditions being

observed are called random variables (or experimental variables) because our observations of them can vary

from one trial to the next. A random variable can be either discrete or continuous

Answer 2

1.Bibliography

2.Spreadsheets

3.Hypothesis