Matter Matters
Which statement describes matter?
A. It is anything that gives off light. B. It has mass and takes up space. C. It is found only in living things. D. It is energy that helps plants grow
B. It has mass and takes up space.
Grass makes its own food. What is its role in an ecosystem?
A. Consumer B. Decomposer C. Producer D. Predator
C. Producer
A rabbit eats grass. How does matter move during this event? A. From the rabbit to the grass B. From sunlight into the rabbit C. From the grass into the rabbit D. From the rabbit into sunlight
C. From the grass into the rabbit
Fungi break down a dead plant. What role are the fungi playing?
A. Decomposer B. Consumer that hunts prey C. Producer D. Nonliving part of the environment
A. Decomposer
What do arrows represent in a model that follows matter through an ecosystem?
A. The direction matter moves B. How much sunlight plants receive C. The sizes of different organisms D. Only which animals eat plants
A. The direction matter moves
A student says sunlight provides the matter that becomes part of grass. Which correction is best?
A. Sunlight and water provide matter; air provides no matter. B. Sunlight provides matter; air and water provide energy. C. Sunlight and air provide energy; water provides no matter. D. Sunlight provides energy; air and water provide matter.
D. Sunlight provides energy; air and water provide matter.
Which example includes both living and nonliving parts of an ecosystem?
A. Rabbits and hawks B. Grass and water C. Fungi and bacteria D. Grass and trees
B. Grass and water
Which path shows matter moving through the full cycle described in the presentation?
A. Environment > consumer > producer > decomposer > environment
B. Producer > sunlight > consumer > decomposer > producer
C. Environment > decomposer > consumer > sunlight > environment
D. Environment > producer > consumer > decomposer > environment
D. Environment > producer > consumer > decomposer > environment
A rabbit dies in a field. What happens to its matter as decomposers break it down?
A. The matter disappears from the ecosystem. B. The matter returns to the environment. A rabbit dies in a field. C. All of the matter changes into sunlight. D. All of the matter becomes new grass immediately.
B. The matter returns to the environment.
Students begin a model with six tokens representing matter. After moving them through the ecosystem cards, what should they find?
A. Fewer tokens because consumers destroy matter B. All six tokens still somewhere in the model C. More tokens because producers create matter D. No tokens because decomposers remove all matter
B. All six tokens still somewhere in the model