Matter and Energy in Ecosystems End of Unit Test
Authored by Mr. Centeno
Science
6th Grade
NGSS covered
Used 740+ times
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This assessment covers the fundamental processes of photosynthesis and cellular respiration within ecosystems, making it appropriate for 6th-grade students studying life science. The questions systematically test students' understanding of how matter and energy flow through living systems, specifically focusing on carbon cycling and energy storage molecules. Students must demonstrate their grasp of photosynthesis as the process by which plants take in carbon dioxide from air or water in the presence of sunlight to create energy storage molecules, while cellular respiration occurs in all living organisms and breaks down these molecules, releasing carbon back to the environment. The core concepts include recognizing which organisms perform each process, understanding the relationship between light availability and photosynthesis rates, and connecting carbon movement to changes in energy storage molecules within sealed experimental systems. Created by Mr. Centeno, a Science teacher in US who teaches grade 6. This comprehensive end-of-unit test serves as a summative assessment tool to evaluate student mastery of ecosystem matter and energy concepts before moving to the next unit of study. Teachers can use this quiz to identify specific misconceptions about photosynthesis and cellular respiration, particularly students' understanding of which organisms perform these processes and how environmental conditions affect them. The assessment works effectively for determining which students need additional support with carbon cycling concepts and energy flow in ecosystems. This quiz aligns with NGSS 5-LS2-1 (matter cycling in ecosystems) and MS-LS1-5 (photosynthesis and cellular respiration), providing teachers with reliable data about student achievement on these critical middle school life science standards.
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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. The sun has been up for several hours, and it has been shining on these trees. What can the trees do because they are in the sunlight? What does this mean for the number of energy storage molecules in the trees?The trees can . . .
A. give off carbon to the air. Giving off carbon allows them to make energy storage molecules.
B. give off carbon to the air. Giving off carbon uses up energy storage molecules.
C. take in carbon from the air. The carbon is used to make energy storage molecules.
D. take in carbon from the air. The carbon is used to break down energy storage molecules.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS1-7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2. These goats are eating grass on a sunny day. What is happening to the carbon in the air around the living things on the mountain? Is carbon moving into the air, moving out of the air, or both?
A. Carbon is only moving into the air; it is not moving out of the air.
B. Carbon is moving into the air and out of the air at the same time.
C. Carbon is not moving into the air; it is only moving out of the air.
D. With this information, there is no way to know for sure.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3. Will has an aquarium with water, plants, and fish that eat the plants. It is sealed so no material can get in or out, and has glass sides that allow sunlight to come in. The aquarium can also be covered to prevent light from entering.
The amount of carbon in the aquarium's water started out high. Now, the amount of carbon in the water is decreasing. Is the aquarium now in sunlight or is it covered? What is happening to the number of energy storage molecules in the plants and fish as a result?
A. The aquarium is now in sunlight, and there are more energy storage molecules in the plants and fish.
B. The aquarium is now in sunlight, and there are fewer energy storage molecules in the plants and fish.
C. The aquarium is now covered so no light can get in, and there are more energy storage molecules in the plants and fish.
D. The aquarium is now covered so no light can get in, and there are fewer energy storage molecules in the plants and fish.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
NGSS.MS-LS2-1
NGSS.MS-LS2-4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4. Scientists are studying photosynthesis in a forest ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the forest carry out photosynthesis?
A. all organisms in the forest
B. animals and decomposers
C. plants and decomposers
D. plants
Tags
NGSS.MS-LS1-6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5. A herd of deer lives in a forest where they eat the leaves of trees. The number of energy storage molecules in the trees and in the deer has increased. What has happened to the amount of carbon in the trees and in the deer? The amount of carbon in the trees and in the deer . . .
A. has increased.
B. has decreased.
C. has not changed.
D. is not related to the number of energy storage molecules.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
NGSS.MS-LS2-1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6. This sea grass has had the sun shining on it for most of the day. What can the sea grass do because it is in sunlight? What does this mean for the number of energy storage molecules in the sea grass?The sea grass can . . .
A. take in carbon from the air. The carbon is used to break down energy storage molecules.
B. take in carbon from the air. The carbon is used to make energy storage molecules.
C. give off carbon to the air. Giving off carbon allows the sea grass to make energy storage molecules.
D. give off carbon to the air. Giving off carbon uses up energy storage molecules.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7. This tortoise is eating cactus on a sunny day. Is carbon moving into the air, moving out of the air, or both?
A. Carbon is not moving into the air; it is only moving out of the air.
B. With this information, there is no way to know for sure.
C. Carbon is only moving into the air; it is not moving out of the air.
D. Carbon is moving into the air and out of the air at the same time.
Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
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