Group 1: Nature of Science

Why should an experiment be repeated?

• to form a hypothesis
• to reduce the chance of error
• to change controls
• to identify the problem

Tags

NGSS.MS-PS2-5

How many independent variables should be tested at a time in a scientific investigation?

• none
• one
• two
• three

Tags

NGSS.MS-PS2-2

Which is the dependent variable in Amelia's experiment?

• the number of bean plants in each group 
• the amount of water given daily to each plant 
• the height of each bean plant 
• the amount of fertilizer given to each group of bean plants

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The variable that is changed on purpose is: 

• Control
• Dependent
• Independent
• Outcome

How would you collect data about the stars?

• Make a bar graph
• Read about the stars
• Ask a friend what they think
• Draw what you see

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

• Dependent
• Independent
• Control
• Outcome

The purpose of this study was to discover

• if water depth affects temperature

• If water depth affects the number of fish

• If temperature affects the depth of water

Which statement below fits the data table?

• A pH of 6 shows the best plant growth

• A pH of 4 grows the best plants

• A pH of 5 grows the best plants

• a pH of 4 or 5 grew the best plants

Tags

NGSS.MS-LS1-5

The most logical purpose for this experiment is

• To discover if the pH of soil affects the MASS of a plant

• To discover if pea plants grow better than bean plants

• To discover if the pH of soil affects the average plant growth

• To discover if The plaant group affets the pH of soil

Tags

NGSS.MS-LS1-5