Scientific Variables QUIZ

In a scientific experiment, what is staying the same?

• Independent variable
• Dependent variable
• Control or constant

In a scientific experiment, what is being measured?

• Independent variable
• Dependent variable
• Control or constant

In a scientific experiment, what is the one thing being changed?

• Independent variable
• Dependent variable
• Control or constant

One tank of goldfish is fed the normal amount of food once a day, a second tank is fed twice a day, and a third tank four times a day during a six week study. The fish’s weight is recorded daily. What is the independent variable?

• How often the fish are fed
• The weight of the fish
• Six weeks

One tank of goldfish is fed the normal amount of food once a day, a second tank is fed twice a day, and a third tank four times a day during a six week study. The fish’s weight is recorded daily. What is the dependent variable?

• How often the fish are fed
• The weight of the fish
• Six weeks

One tank of goldfish is fed the normal amount of food once a day, a second tank is fed twice a day, and a third tank four times a day during a six week study. The fish’s weight is recorded daily. What is the control or constant?

• How often the fish are fed
• The weight of the fish
• Six weeks

Trevor wanted to find out if fertilizer will help grow marigolds. He put fertilizer on two marigolds, and no fertilizer on two other marigolds. After two weeks, Trevor measures the height of the plants. What is the independent variable?

• Height of the marigolds
• Fertilizer
• No Fertilizer

Trevor wanted to find out if fertilizer will help grow marigolds. He put fertilizer on two marigolds, and no fertilizer on two other marigolds. After two weeks, Trevor measures the height of the plants. What is the dependent variable?

• Height of the marigolds
• Fertilizer
• No Fertilizer

Trevor wanted to find out if fertilizer will help grow marigolds. He put fertilizer on two marigolds, and no fertilizer on two other marigolds. After two weeks, Trevor measures the height of the plants. What is the control?

• Height of the marigolds
• Fertilizer
• No Fertilizer