Biology Unit 1 Test 1 Review

1. The data table below shows information gathered from a science experiment. Time was measured in seconds (s) and distance was measured in meters (m). Which grid is correctly designed to show these data in a line graph?

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2. The relationship where you increase one variable and the other one decreases.

• A. Direct Relationship
• b. Indirect or Inverse Relationship
• C. Cyclic Relationship
• D. Dynamic Equilibrium

3. The relationship where one variable stays the same

• A. Direct Relationship
• b. Indirect or Inverse Relationship
• C. Cyclic Relationship
• D. Dynamic Equilibrium

4. The relationship for a repeating event shown in the diagram.

• A. Direct Relationship
• b. Indirect or Inverse Relationship
• C. Cyclic Relationship
• D. Dynamic Equilibrium

5. The relationship where as you increase one variable the other one also increases.

• A. Direct Relationship
• b. Indirect or Inverse Relationship
• C. Cyclic Relationship
• D. Dynamic Equilibrium

6. A group of students did an experiment to measure the effect of water temperature on seed-germination time. The students planted the same number of two types of seeds in separate containers. Each container was made of clear plastic and had 50 milliliters (mL) of soil. For one week, bean seeds were watered once a day with 5 mL of hot (30° Celsius (°C)) water. Tomato seeds were watered once a day with 5 mL of cold (10°C) water. The time it took each type of seed to germinate was observed and recorded. The experimental setup is represented in the diagram below. Identify all the factors that were kept constant in this experiment.

• Material of the container
• Temperature of water
• Type of seeds
• Amount of water
• Amount of soil

7. The independent variable is what the scientist __________ , while the dependent variable is what the scientist __________.

• A. changes, measures
• B. Measures, changes
• C. Keeps the same, changes
• D. None of the above

8. What is the independent variable in this experiment?

• The distance the water jetted out of the container
• The location of the hole in the container
• The amount of water in each container
• The height of the tables the containers are on

9. What is the dependent variable in this experiment?

• The distance the water jetted out of the container
• The location of the hole in the container
• The amount of water in each container
• The height of the tables the containers are on

10. What are the controlled variables/constants in this experiment? (Select all that apply)

• The distance the water jetted out of the container
• The location of the hole in the container
• The amount of water in each container
• The height of the tables the containers are on