Nature of Science Test

Using one or more of your senses to gather information is called

• observing.

• inferring.

• predicting.

• classifying.

Tags

NGSS.MS-LS1-8

The basic unit of length in the metric system is the

• foot.

• meter.

• mile.

• kilometer.

A variable that is purposely changed to test a hypothesis is a(n).

• Observed variable

• Dependent (outcome) variable

• Independent (tested) variable

• Controlled variable

Tags

SC.7.N.1.4

Jacquelyn conducted an experiment to find out what happens to the temperature of water after it starts boiling. She measured the temperature of the water every 30 seconds during the experiment. She wants to graph her data. She determines that temperature is her dependent variable. What is her independent variable?

• Water

• State of matter

• Time

• Boiling point of water

Tags

SC.7.N.1.1

Which is a scientific explanation for the evidence shown in the table above?

• As time increases the distance traveled by the plane increases.

• The shorter the distance the greater the time.

• The plane flew very well.

• As time increases the distance traveled by the plane decreases.

Tags

SC.7.N.1.1

Scientific knowledge is based on empirical evidence. Which of the following is NOT a way to gain scientific knowledge?

• Through experimentation

• Through an observational field study

• By making assumptions

• By making models

Tags

SC.7.N.1.3

The following statements were taken from the procedures of four different investigations. Investigation 1 2 3 4 Statement Pour 50 milliliters (mL) of water down four inclined surfaces. Roll a marble down the ramp from a height of 10 centimeters (cm), 20 cm, and 30 cm. Take the mass of five rocks separately and then determine the average mass in grams (g). Conduct four trials of counting the bubbles produced by a water plant for 1 minute (min) each. The statement from which investigation is an example of repetition?

• Investigation 1

• Investigation 2

• Investigation 3

• Investigation 4

Tags

SC.7.N.1.2

Diana wanted to know if native Florida bees were more attracted to native Florida plants or nonnative plants. Diane went outside and watched the bees, documenting whether they approached the native Florida plants or the nonnative plants. After two months, she analyzed her data and reported her findings to several local environmental agencies. What type of scientific investigation did Diana complete?

• Controlled experiment

• Literature research

• Observational study

• Roll a marble down the ramp from a height of 10 centimeters (cm), 20 cm, and 30 cm.

Tags

SC.7.N.1.3

You are investigating whether robins prefer one type of bird seed over any other type. Your independent (tested) variable is the type of bird seed used. What should your dependent (outcome) variable be?

• The amount of bird seed the feeder holds.

• The size of the bird feeder.

• The number of robins that eat each bird seed.

• The cost of the different types of bird seed.

Tags

SC.7.N.1.4

In an experiment, 100 rose plants were grown under red wavelengths of light. An additional 100 rose plants were grown under normal light conditions. The rose plants grown under normal light conditions were the

• Control group

• Data

• Test group

• Variable

Tags

SC.7.N.1.4