Earth/Space Science WK 2

What happens when the slightest change happens in an ecosystem?

• It affects the whole system.

• It affects part of the system.

• The ecosystem ignores the change.

• Nothing happens.

The process of water moving from the Earth to the atmosphere and back again is called the

• Earth cycle

• Atmosphere cycle

• life cycle

• water cycle

Which of the following was Matthew Maury's greatest accomplishment?

• Maury sailed around the world in the fastest time.

• Maury discovered the smallest member of the ocean’s food chain.

• Maury learned how to create maps.

• Maury mapped the bottom of the Atlantic Ocean.

What label is missing from the food chain below?

Sun, ________, plankton, fish and ocean animals.

• microscopic organisms

• sharks

• whales

• decaying plants and animals

What would be the appropriate title for the words below?

Sun, ________, plankton, fish and ocean animals.

• Land Food Chain

• Ocean Food Chain

• Life Cycle

• Earth Cycle

How much of the Earth is covered with water in the hydrosphere?

• less than 1 percent

• about 2 percent

• about 75 percent

• more than 97 percent

What might happen if smaller fish had to leave one area of the ocean because the temperature changed?

• the plants in that area could not survive

• the small fish would eat the plankton

• the large animals might lose their food source

• the ocean waves might change

How do experts choose the best shipping routes to ship good across the ocean on a boat?

• They study weather patterns.

• They study currents and wind patterns.

• They study popular destinations.

•  They study the length of day.