ICAS Interpreting Scientific Data 2

Question 1

A bar graph shows the number of birds observed in a park over four seasons: Spring=45, Summer=30, Fall=52, Winter=18. Which season had the fewest bird observations?

Accepted Answer

Winter

Answer

Spring

Answer

Summer

Answer

Fall

Question 2

A scientist records water temperature at noon each day for a week: 18°C, 19°C, 17°C, 21°C, 20°C, 16°C, 22°C. What is the range of temperatures recorded?

Accepted Answer

6°C

Answer

4°C

Answer

5°C

Answer

7°C

Question 3

A line graph shows plant height increasing steadily from Week 1 to Week 4, then remaining flat from Week 4 to Week 6. What does the flat portion of the graph indicate?

Accepted Answer

Growth stopped during that period

Answer

The plant died

Answer

Measurement error occurred

Answer

The plant began flowering

Question 4

Two students measure the length of the same stick. Student A records 24.3 cm and Student B records 24.7 cm. What is the difference between their measurements?

Accepted Answer

0.4 cm

Answer

0.2 cm

Answer

0.6 cm

Answer

1.0 cm

Question 5

A table shows that three soil samples have the following pH levels: Sample A=6.2, Sample B=7.0, Sample C=7.8. Which sample is most acidic?

Accepted Answer

Sample A

Answer

Sample B

Answer

Sample C

Answer

They are equally acidic

Question 6

A pie chart shows the composition of air: Nitrogen 78%, Oxygen 21%, Other gases 1%. Approximately what fraction of air is oxygen?

Accepted Answer

About one-fifth

Answer

About one-half

Answer

About one-quarter

Answer

About one-tenth

Question 7

An experiment tests how fertilizer amount affects crop yield. The independent variable is fertilizer amount and yield is measured. What is the dependent variable?

Accepted Answer

Crop yield

Answer

Fertilizer amount

Answer

Sunlight received

Answer

Soil type