Unit 1 Science Review

______ is anything that has mass and takes up space.

• properties

• relative density

• mass

• matter

______ is a container used to measure the volume of liquids.

• graduated cylinder

• microscope

• goggles

• triple beam balance

What instrument was used for the measurement of these objects?

• calculator

• meter stick

• triple beam balance

Which is NOT a step in the scientific method?

• Make observation
• Form a theory
• Collect data
• Form a hypothesis

This variable in an experiment is the one being changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Students were investigating some properties of rocks. They wanted to compare the volumes of the rocks.

Which tool should the students use to accurately measure the volume of each rock?

• 
• 
• 
• 

Some researchers are developing a new fertilizer designed to improve the growth of plants in hot, dry climates. The fertilizer was applied to one hundred desert plants in a greenhouse. The average daytime temperature in the greenhouse was 90°F, and the humidity levels were low. Which is best for the researchers to do next?

• A compare plants that received fertilizer to similar plants that received none

• B begin selling the fertilizer to gardeners living in hot, dry climates

• C change the conditions in the greenhouse and retest the fertilizer

• D test the fertilizer on plants that are adapted to cooler climates

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment?

• the amount of carbon dioxide in each container

• the number of plants in each container

• the amount of water provided to the plants

• the height of each plant after a period of time

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The students concluded that the plants grown indoors grew faster because they received better quality light than the plants grown outdoors. Which is the most likely reason this conclusion may be flawed?

• The students measured the plants at different times.

• The students should have grown different types of plants.

• The growth of the plants in each set was affected by more than one factor.

• The outdoor plants grew faster than the indoor plants.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A student filled three identical cups with equal amounts of water. The student placed each cup in a room with a different air temperature. After a few days, the student compared the amounts of water remaining in each cup.

What cause-and-effect relationship does this investigation support?

• As evaporation decreases, air temperature decreases.

• As evaporation increases, air temperature increases.

• At higher air temperatures, more water evaporates.

• At higher air temperatures, less water evaporates.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4