Conservation of Mass & Cellular Respiration/ Photosynthesis

Jordan adds some soil and plants to a large glass jar to build a

terrarium. He waters the plants and then adds two snails, two crickets,

and an earthworm to the jar. Jordan then places the lid tightly on the

jar and sets it on a sunny windowsill. Based on the law of conservation

of mass, which of the following is expected to occur inside Jordan’s

terrarium?

• The mass will increase as the plants grow and decrease when the

  snails eat the plants.

• The mass will increase as the earthworm digests the soil.

• The mass will decrease when the crickets die.

• The mass will neither increase nor decrease.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What evidence should be present to show that labels B and D support the Law of Conservation of Mass and Energy?

• oxygen coming in and water being released

• glucose being taken in and oxygen being released

• carbon dioxide coming in and glucose being created

• sunlight being absorbed and carbon dioxide being released

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

What is the importance of the part labeled E?

• What is the importance of the part labeled E

• Oxygen is converted into carbon dioxide and released from the plant

• Water is the source of hydrogen that is found in the glucose

• Carbon dioxide is used to create the glucose for the plant

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of these pieces of evidence would support the Law of Conservation shown in process C?

• Glucose is broken down into oxygen that is then taken up by plants for photosynthesis

• Cellular respiration produces the oxygen that will be used to convert the glucose into carbon dioxide

• Glucose in the bread is converted into energy so that the organism can carry out all of its required processes

• Carbon dioxide from the breakdown of glucose is used to create more glucose for plants during photosynthesis

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Why is sunlight so important to the process of photosynthesis?

• It transforms the carbon dioxide into oxygen that is released through the leaves

• It provides the needed temperatures to change glucose into water

• It provides the energy needed to combine the atoms in glucose

• It raises the levels of gases in the air so that water can change into oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

During the forest fire, chemical potential energy is converted to thermal energy when trees and plants burn. How does this demonstrate the law of conservation of energy?

• Heat is transferring to the forest’s surroundings

• Energy is changing form

• Some plants and animals survive

• Energy continues to enter the ecosystem

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

NGSS.MS-PS1-4

Carbon can be found in...

• The atmosphere
• Soil
• Fossil fuels
• All of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which organisms perform cellular respiration?

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Tags

NGSS.MS-LS2-3

Which organisms photosynthesize?

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• 
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Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which cell organelle is where photosynthesis takes place?

Tags

NGSS.MS-LS1-6