MAP Core Concepts and Principles 3 — Questions and Answers
Question 1: Which two products are made by plants during photosynthesis?
- Carbon dioxide and water
- Glucose and oxygen (Correct answer)
- Oxygen and carbon dioxide
- Glucose and nitrogen
Correct answer: Glucose and oxygen
Photosynthesis uses light, water, and carbon dioxide to produce glucose and oxygen.
Question 2: A student tests how the amount of fertilizer affects plant height. What is the independent variable?
- Plant height
- Type of plant
- Amount of fertilizer (Correct answer)
- Amount of sunlight
Correct answer: Amount of fertilizer
The independent variable is the factor the experimenter deliberately changes.
Question 3: When a swimmer pushes backward on the water and moves forward, which law of motion is shown?
- Newton's first law
- Newton's second law
- Newton's third law (Correct answer)
- Law of conservation of mass
Correct answer: Newton's third law
Newton's third law states every action has an equal and opposite reaction.
Question 4: In the water cycle, liquid water changing into water vapor because of the sun's heat is called:
- Condensation
- Precipitation
- Evaporation (Correct answer)
- Runoff
Correct answer: Evaporation
Evaporation is the change of liquid water to a gas when heated.
Question 5: What is the basic structural and functional unit of all living things?
- Atom
- Cell (Correct answer)
- Tissue
- Organ
Correct answer: Cell
Cell theory states the cell is the basic unit of life.
Question 6: Which of the following is an example of a physical change?
- Wood burning
- Iron rusting
- Ice melting (Correct answer)
- Milk souring
Correct answer: Ice melting
Melting changes only the state of water, not its chemical identity.
Question 7: In a food web, which organisms are producers?
- Hawks
- Grasses (Correct answer)
- Mushrooms
- Rabbits
Correct answer: Grasses
Producers like grasses make their own food from sunlight through photosynthesis.
MAP Core Concepts and Principles 3
Which two products are made by plants during photosynthesis?