Open Stax Chapter 1 Section 1

Explain how you could experimentally determine whether the outside temp is higher or lower than zero degrees Celsius without using a thermometer.

A scientific ____________ is a broad explanation for events that is widely accepted as true.

• law
• theory
• observation
• method

A scientific ____________ is a statement that describes what always happens under certain conditions in nature.

• law
• theory
• method
• variable

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

If I increase the amount of fertilizer a bean plant receives, the plant will grow taller.

• Hypothesis

• Theory

• Law

Species on earth have changed over time because some organisms are more likely to survive and to reproduce, passing favorable traits to their offspring.

• hypothesis

• theory

• law

e=mc²

• hypothesis

• theory

• law

Once a theory has been tested and confirmed it cannot be changed.

• True
• False