TCAP Review 2

1. Many desert animals depend on prickly pear cactus. What role does the prickly pear cactus play in a desert food web?

• It obtains energy from producers.

• It returns nutrients to the soil.

• It preys upon other organisms.

• It provides energy to consumers.

2. The graph shows the thickness of Earth's layers. Which table correctly identifies Earth's layers from thinnest to thickest?

• 
• 
• 
• 

3. A student places 250 gram samples, of clay, sand, and gravel, and silt in separate flower pots. The pots are set on a wire rack, and dishes are placed beneath the pots so that water can drip through holes and collect. The student then pours 100mL of water over the sample in each pot. The student measures the time it takes for water to begin dripping from the bottom of each pot. What property of soils is the student most likely examining with this procedure?

• The differences in texture between wet and dry soils.

• How much water is needed to dissolve different soils.

• How well different soils retain water.

• The amount of time it takes different soils to dry.

4. Resources can be classified as renewable or nonrenewable. Which of these resources is classified in the same category as coal?

• wood

• wind

• corn oil

• petroleum

5. Scientists use telescopes to make distant objects appear closer. Some parts of a telescope are shown below. Which of the following best describes how the objective lens of this telescope helps a scientist observe the moon?

• the objective lens produces light

• the objective lens blocks light

• the objective lens reflects light

• the objective lens refracts light

6. Why does white light passing through a prism appear to form a rainbow?

• there are many colors of glass inside the prism

• the prism separates the different colors of light that make up white light

• the prism adds different amounts of energy to different rays of light

• the prism absorbs some of the color from each ray of light that passes through

7. Which kind of energy is produced when a student beats a drum?

• electrical

• sound

• light

• chemical

8. A student reads the following information on a website. Which question does this information help answer?

• Why does Earth have only one moon?

• What causes Earth to have day and night?

• Why does Earth have oxygen in its atmosphere?

• What causes Earth to be warm enough for living things?

9. A student draws diagrams of her house and the location of the sun in the sky. Which diagram below does NOT correctly represent the location of the sun at the time indicated?

• 
• 
• 
• 

10. Fertilizers used on farms near the coast can be carried to the ocean when runoff occurs during rain showers. These fertilizers can decrease the populations of fish and shellfish. Which other populations most likely decrease as a result?

• organisms that eat algae

• organisms that live on farms

• organisms that eat fish and shellfish

• all of these