Sci7 Test 1 Review

A student is setting up an experiment. The student has twenty identical young plants and will try to answer this question: How does the amount of water given to these plants each day affect how tall the plant will grow? State an appropriate hypothesis for this experiment.

• If the temperature increases, then the plant height increases.

• If the volume of water increases, then the plant height increases.

• As the sunlight increases, the plant height decreases.

• As the volume of water increases, the plant height increases.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5

A student is setting up an experiment. The student has twenty identical young plants and will try to answer this question: How does the amount of water given to these plants each day affect how tall the plant will grow? Identify the conditions, other than identical young plants, that should be held constant during the experiment. Check all that apply.

• The volume of water

• The amount of soil

• The duration of sunlight

• The temperature of the room

Tags

NGSS.MS-LS2-1

A student is setting up an experiment. The student has twenty identical young plants and will try to answer this question: How does the amount of water given to these plants each day affect how tall the plant will grow? Identify the measuring tools needed for this experiment and describe the type of data measured by this tool. Check all that apply.

• Thermometer

• Small graduated cylinder

• Metric ruler

• Large flask

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5

Which measuring instrument is correctly paired with its unit?

• Graduated cylinder - mL

• Electronic balance - degrees C

• Metric ruler - g

• Thermometer - cm

The data table shows the average number of Calories needed daily by adult men of different weights, measured in pounds (lb), to maintain a steady weight. All of the men performed moderate levels of physical activity each day. Identify the dependent variable.

• Weight of adult men

• Average number of calories needed daily

• 132

• Pounds

The data table shows the average number of Calories needed daily by adult men of different weights, measured in pounds (lb), to maintain a steady weight. All of the men performed moderate levels of physical activity each day. Identify the independent variable.

• Weight of adult men

• Average number of calories needed daily

• 2250

• Height of men

Write an appropriate title for this graph.

Identify the lab safety violations shown in the picture.

• Students are not wearing safety goggles.

• A student's hair is on fire.

• A student is sniffing the chemical instead of wafting.

• A student is sleeping on the floor.

What is the volume of the liquid in the graduated cylinder?

• 37 mL

• 36 mL

• 35 mL

• 31 mL

Which statement about a control group is TRUE? Check all that apply.

• A control group is a basis of comparison for the experimental group.

• A control group is treated the same as the experimental group.

• A control group is not needed for a fair test.

• A control group is needed for a fair test.