ACT Prep Science

What is the benchmark for Science?

• 22
• 23
• 24
• 21

A student wants to test the effects of type of exercise on heart rate.  What would be a proper hypothesis?

• If type of exercise affects the heart rate of a person, then jumping jacks will increase the heart rate the most
• Jumping jacks will cause the highest heart rate
• Exercise increases heart rate
• If exercise affects heart rate, jumping jacks will increase heart rate the most

A student wants to test the effects of type of exercise on heart rate.  What would be a good experimental group?

• jumping jacks, push-ups, sit-ups, jogging in place, lunges
• standing heart rate

On which axis would you place the independent variable?

• X
• Y
• Z

On which axis would you place the dependent variable?

• X
• Y
• Z

What graph would you use if there are percentages involved?

• Pie chart
• Bar graph
• Line graph
• Data table

What are the two types of observation?

• Seeing, hearing, smelling, tasting, and touching
• Words and numbers
• Quality and quanted
• Quantitative and qualitative

Which of the following graphs best illustrates the relationship between the heat released by the foods listed in Table 1 and the change in water temperature?

• A
• B
• C
• D