RHS PS Ch1 Test

Of these units, the one that represents volume is _________.

• cm

• mm³

• cm²

• kg

A quantity in an experiment that can have more than one value is a _________.

• constant

• standard

• unit

• variable

The density of a cube that measures 1.00 cm on each side and has a mass of 2.0g is ____.

• 0.50 g/cm³

• 0.50 cm³/g

• 1.00 g/cm³

• 2.0 g/cm³

A possible hypothesis based on the information in this table is __________.

• average life span is proportional to heart rate

• heart rate is not related to animal size

• larger animals have faster heart rates

• heart rate is not related to lifespan

An explanation based on knowledge gained from many experiments is called a _________.

• theory

• conclusion

• hypothesis

• scientific law

The base unit of mass in the SI system is the _________.

• gram

• mole

• kilogram

• pound

The best type of graph for showing how something is divided into parts is a _________.

• bar graph

• line graph

• model

• circle graph

Based on the information on the table, which statement is true?

• Corn syrup has the highest density of the three liquids.

• Corn syrup will dissolve in water.

• Corn syrup and orange juice are very similar.

• Water will float on top of oil.

Tags

NGSS.MS-PS1-2

The symbol dL is used to represent a measure of _________.

• intensity of light

• volume

• length

• time

The purpose of a control in an experiment is to _________.

• keep the temperature from getting too high

• change one variable while observing another

• provide a standard to which to compare the results

• record changes in a value