1-The Science of Biology

Science differs from other disciplines, such as history and the arts, because science relies on

• facts.
• testing explanations
• theories
• observations

Tags

NGSS.HS-PS1-2

NGSS.HS-PS4-3

Measurements made while observing a plant grow 3 cm over a two-week period are called

• inferences.
• variables.
• data.
• hypothesis.

How do scientific theories compare to hypotheses?

• Theories are the same has hypotheses.
• Theories unify a broad range of observations and hypotheses.
• Hyptheses are the dominant view among scientists.

The basic unit of length in the metric system is the

• gram.
• liter.
• yard.
• meter.

What are the smallest objects that biologists study?

• cells
• molecules
• body organs
• organisms

An experiment in which only one variable is changed is a(an) _____ experiment.

• controlled
• uncontrolled

A mass of 3000 g is equal to ___ kg.

• 30
• 30000000
• 3
• 25

Based on your observations, you suggest that the presence of water could accelerate the growth of bread mold.  This is

• a conclusion.
• an experiment.
• a hypotheses.

Tags

NGSS.HS-ESS2-5

Why is creativity considered a scientific attitude?

• Scientists need creativity to make good posters to explain their ideas.
• Creativity helps scientists come up with different experiments.

Who reviews articles for peer-reviewed journals?

• friends of the scientists who wrote the articles
• the scientists who did the experiments
• anonymous and independent experts
• people who paid for the experiments