Chap 1 1.2 Review

Which is a theory?

• gravity
• momentum
• evolution
• speed of light

An explanation that has been tested and observed repeatedly, and seems true, is called a(n)?

• hypothesis
• theory
• law
• fact

A testable explanation of a situation is called a(n)-

• experiment
• hypothesis
• theory
• observation

which topic falls under biology study?

• a rock in a river bed
• the chemicals in fuel
• the make up of the atmosphere
• the digestive system of an earth worm

Which helps a dog maintain homeostasis?

• barking
• hunting 
• sleeping
• panting

What would be an activity conducted by a biologist?

• studying the behavior of brown bats
• teaching people how to plant corn
• studying how a mountain developed
• design a new solar-powered car

Which would be considered a non-scientific question?

• are humans able to read minds?
• how do dolphins communicate?
• who was the greatest scientist of all times?
• why are ocean temperatures increasing?

The basic unit of structure for all life is a(n)- 

• organ
• molecule
• tissue
• cell

What is the first thing a scientist does?

• makes an experiment
• makes a hypothesis
• makes an observation
• gathers evidence

The white hair of a polar bear is an example of a(n)- 

• adaption
• development
• response
• stimulus