Unit Exam - Test Corrections

Energy from the sun is transformed into what type of energy through the process of photosynthesis?

• Radiant

• Chemical

• Thermal

• Electrical

Tags

NGSS.MS-LS1-6

During photosynthesis, energy is stored in the chemical bonds of —

• oxygen

• carbon dioxide

• glucose (sugar)

• water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

During photosynthesis, plants convert ​ (a)   energy into ​ (b)   energy.​

• radiant
• chemical
• thermal
• mechanical
• electrical

Tags

NGSS.MS-LS1-6

What forms of energy are entering and exiting in the process of photosynthesis?

• Light energy is entering; chemical energy in glucose is exiting.

• Wind energy is entering; light energy in chloroplasts is exiting.

• Chemical energy in nutrients is entering; light energy is exiting.

• Thermal energy in sunlight is entering; electrical energy is exiting.

Tags

NGSS.MS-LS1-6

Which type of energy conversion occurs during the process of photosynthesis?

• Chemical energy is converted into radiant energy.

• Radiant energy is converted into thermal energy.

• Thermal energy is converted into chemical energy.

• Radiant energy is converted into chemical energy.

Tags

NGSS.MS-LS1-6

A group of science students placed a stem of an aquatic green plant called Elodea inside of a test tube filled with water. They exposed the plant to sunlight for several hours and noticed bubbles forming and rising to the surface. The bubbles released by the Elodea plant formed a gas called ​ (a)   .

• oxygen
• nitrogen
• carbon dioxide
• methane
• hydrogen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The equation seen here describes the chemical reaction that occurs during photosynthesis. What happens to the light energy that is shown in the reaction?

• It is destroyed during the reaction.

• It is released when the reaction is complete.

• It is converted into chemical energy during the reaction.

• It is changed into atoms of carbon and oxygen during the reaction.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What energy transformation occurs in the rabbit that just ate grass?

• chemical energy in the grass is transformed into radiant energy in the rabbit.

• chemical energy in the grass is transformed into thermal energy in the rabbit.

• radiant energy in the grass is transformed into chemical energy in the rabbit.

• thermal energy in the grass is transformed into electrical energy in the rabbit.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

A student prepares for a five-mile run so she eats a nutritious meal three hours before the run. Which correctly illustrates the transformation of energy from eating the meal to the five-mile run?

• Chemical energy

  --->

  Thermal energy

  --->

  Radiant energy

• Thermal energy

  --->

  Mechanical energy

  --->

  Chemical energy

• Mechanical energy

  --->

  Thermal energy

  --->

  Chemical energy

• Chemical energy

  --->

  Mechanical energy

  --->

  Thermal energy

Animals are consumers, meaning they need to eat food for energy because they cannot make their own. Which energy transformation is taking place when an animal eats food so it can keep warm?

• Mechanical to thermal

• Mechanical to radiant

• Chemical to thermal

• Radiant to chemical

Tags

NGSS.MS-LS1-7

NGSS.MS-PS3-5