Nature of Science

Based on the position of the wings, which of the insects below is most likely in the order Hemiptera?

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Which metric measure would be best to use when measuring the amount of water given to a plant?

• Milliliters

• Centimeters

• Kilograms

• Meters

The chart shows the results of a bean plant growth experiment. The plants received equal amounts of water and sunlight each day. Which of these is not an example of a constant in this experiment?

• Bean plant height

• Amount of sunlight

• Growing time

• Amount of water

Animals and plants get their food in different ways. Animals usually ingest their food, while plants must produce their own food. The process through which plants produce their food is called

• respiration

• germination

• photosynthesis

• pollination

Many ideas concerning cells have been proven and incorporated into the cell theory. Which of the following is not part of the cell theory?

• All cells come from other cells.

• All living things are composed of one or more cells.

• All cells reproduce through meiosis.

• All cells reproduce through meiosis.

Which of these structures is made up of all of the others?

• Tissues

• Cells

• Systems

• Organs

In the scale model above, one centimeter is equal to one-half of a meter. The mailbox is two truck lengths away from the model truck. How far away is the mailbox from the truck on the real street?

• 1/2 meter

• 5 meters

• 10 meters

• 20 meters

Which process is the foundation for the food web?

• Photosynthesis

• Condensation

• Movement

• Evaporation

A student wanted to test the hypothesis that adding antifreeze to water lowers the freezing point of water. The student found that pure water froze at 0°C, while the water/antifreeze mixture froze at -20°C. In order to confirm the results, the student should repeat the experiment using

• a different amount of water

• a container of a different size

• exactly the same set-up as the first experiment

• a different amount of antifreeze

This experiment was set up to test the hypothesis that plants grow faster in green light. What is the independent variable in this experiment?

• Color of light

• Size of pot

• Amount of water

• Type of plant