U2b L2 TEST

Water evaporates from the leaves of a plant and returns to the atmosphere in a process called ________________.

• respiration

• transpiration

All living things use energy and release gas as a waste product. What cycle explains the circulation of these gases?

• Water cycle

• Oxygen-Carbon cycle

• Nitrogen cycle

The ______ cycle is a continuous circulation between the soil, organisms,

and air.

• rock

• nitrogen

• earth

• life

Which part of the water cycle includes water vapor gas changing to a liquid?

• condensation

• evaporation

• precipitation

• transpiration

How do animals get nitrogen that is stored in the soil?

• Animals do not take in the nitrogen stored in the soil.

• Bacteria change the nitrogen into a gas that the animals breathe.

• Plants absorb the nitrogen from the soil and animals can eat the plants.

• The animals can eat the soil and absorb the nitrogen through their digestive

  system.

James is observing a lake. He wonders how the water in the lake is included in the

water cycle. Pick the first stage of the water cycle starting with the water in the lake.

• Large water droplets fall to the ground from the clouds.

• Water vapor cools and condenses on dust particles forming clouds.

• Energy from the sun causes the water in the lake to evaporate.

• Water droplets combine in the clouds to form larger droplets.

James is observing a lake. He wonders how the water in the lake is included in the

water cycle. Pick the second stage of the water cycle after the water in the lake.

• Large water droplets fall to the ground from the clouds.

• Water vapor cools and condenses on dust particles forming clouds.

• Energy from the sun causes the water in the lake to evaporate.

• Water droplets combine in the clouds to form larger droplets.

James is observing a lake. He wonders how the water in the lake is included in the

water cycle. Pick the third stage of the water cycle after the vapor cools on dust particles.

• Large water droplets fall to the ground from the clouds.

• Water vapor cools and condenses on dust particles forming clouds.

• Energy from the sun causes the water in the lake to evaporate.

• Water droplets combine in the clouds to form larger droplets.

James is observing a lake. He wonders how the water in the lake is included in the

water cycle. Pick the fourth stage of the water cycle after water droplets combine in the clouds.

• Large water droplets fall to the ground from the clouds.

• Water vapor cools and condenses on dust particles forming clouds.

• Energy from the sun causes the water in the lake to evaporate.

• Water droplets combine in the clouds to form larger droplets.

Mr. Hernandez's science class learned that green plants use sunlight, water, and carbon dioxide to make their own food and release oxygen in the process. How can the class explain how animals complete the oxygen-carbon cycle?

• Animals take in oxygen but do not release gas as they use energy.

• Animals take in carbon dioxide and use it to make food.

• Animals take in oxygen and release nitrogen as waste.

• Animals take in oxygen and as they use energy, carbon dioxide is released as

  waste.