Review (BIO) Unit 1 Concept 1 - Nature of Science

The statement “the worm is 2cm long” is a(n)

• Inference
• Hypothesis
• Qualitative observation
• Quantitative observation

An inference is

• A logical interpretation of an observation
• A statement involving numbers
• A way to avoid bias
• The same as an observation

Tags

NGSS.MS-LS2-4

How much liquid is in this beaker?

• 45 mL
• 49 kg
• 49 mL
• 4 mL

Which of the following statements about a controlled experiment is true?

• All the variables must be kept the same.
• Controlled experiments cannot be performed on living things.
• Only one variable is tested at a time.
• Scientists always use controlled experiments.

A scientific theory is

• Another word for hypothesis
• A well-tested explanation that unifies a broad range of observations
• The first step in a controlled experiment
• The same as the conclusion of an experiment.

Which statement represents a properly formatted hypothesis?

• Plants need fairies to grow.
• If sunlight exposure increases, then plant height will increase.
• Why do plants grow toward sunlight?
• Plants growing in sunlight versus shade.

Tags

NGSS.MS-LS1-5

A commonly used unit in the measurement of temperature in the Biology laboratory is the _____.

• Celsius
• Fahrenheit
• grams
• thermometer

Which example represents an observation rather than an inference?

• The dinosaur was probably brown in color.
• The liquid in the beaker is bubbling and blue.
• The animal must have been scared.
• The weather is changing because of pollution.

If this microscope was under high-power magnification, how big would the specimen be magnified?

• 4x
• 10x
• 100x
• 400x

The unit of mass commonly used in the laboratory is the _____.

• gram
• liter
• meter
• pound