Chemistry - Unit 1 & 2 Review

The leaves on the plant are turning brown.

• Qualitative
• Quantitative
• Both
• Neither

The plant has grown 4 cm since yesterday.

• Qualitative
• Quantitative
• Both
• Neither

Tags

NGSS.MS-LS2-1

When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?

• Dependent
• Independent
• Control
• Compound

Tags

NGSS.MS-ETS1-1

Research Question: Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable?

• Type of gasoline
• which car the gas is put into
• how fast the car can drive
• how much gas is put into the car

Tags

NGSS.MS-PS3-1

The variables in an experiment that stay the same are the:

• IV
• DV
• Constants

A students was doing an experiment using the scientific method. Every three days the student plans to count the green leaves. Which would be a good hypothesis for this experiment?

• If plants are placed in direct sunlight, then they will grow less green leaves.

• If plants are places in bright light, then they will grow more green leaves than in dim light.

• If plants are place in clay pots, then they will grow more green leaves than plastic pots.

• If plants are in warmer temperatures, then they will grow more green leaves.

Describe the accuracy and precision of the image

• Accurate and Precise
• Accurate and not precise
• Not Accurate and Precise
• not accurate and not precise

Describe the accuracy and precision of the image

• Accurate and Precise
• Accurate and not precise
• Not Accurate and Precise
• not accurate and not precise

Tags

NGSS.MS-PS1-2

NGSS.MS-PS3-1

Three different people weigh a standard mass of 2.00 g on the same balance.  Each person obtains a reading of 7.32 g for the mass of the standard.  These results imply that the balance that was used is ____.

• accurate
• precise
• accurate and precise
• neither accurate nor precise

A mechanical pencil has the density of 3.000 g/cm³.  The volume of the pencil is 15.8 cubic centimeters.  What is the mass of the pencil?

• 47.4 g
• 50 g
• 0.190  g
• 5.27 g

Tags

CCSS.7.RP.A.3