ID Variables 63

The temperature of water was measured at different depths in a pond. What is the dependent variable?

• Thermometer

• Location of the pond

• Temperature

• Depth of the water

The temperature of water was measured at different depths in a pond. What is the independent variable?

• Thermometer

• Location of the pond

• Temperature

• Depth of the water

The temperature of water was measured at different depths in a pond. What is the control variable?

• Thermometer

• Location of the pond

• Temperature

• Depth of the water

The temperature of water was measured at different depths in a pond. What is the moderator variable?

• Thermometer

• Location of the pond

• Temperature

• Depth of the water

The temperature of water was measured at different depths in a pond. What is the extraneous variable?

• Thermometer

• Location of the pond

• Temperature

• Weather conditions

Different rose bushes are grown in a greenhouse for two months. The number of flowers on each bush is counted at the end of the experiment. What is the control variable?

• Different type of rose bushes

• Number of flowers

• Same greenhouse

• The color of the rose bushes

Different rose bushes are grown in a greenhouse for two months. The number of flowers on each bush is counted at the end of the experiment. What is the dependent variable?

• Different type of rose bushes

• Number of flowers

• Same greenhouse

• The color of the rose bushes

Different rose bushes are grown in a greenhouse for two months. The number of flowers on each bush is counted at the end of the experiment. What is the independent variable?

• Different type of rose bushes

• Number of flowers

• Same greenhouse

• The color of the rose bushes

Different rose bushes are grown in a greenhouse for two months. The number of flowers on each bush is counted at the end of the experiment. What is the moderator variable?

• Different type of rose bushes

• Number of flowers

• Same greenhouse

• Type of soil use

Different rose bushes are grown in a greenhouse for two months. The number of flowers on each bush is counted at the end of the experiment. What is the extraneous variable?

• Different type of rose bushes

• Number of flowers

• A flood

• Type of soil use