AASA Science and Technology 1 — Questions and Answers
Question 1: What is photosynthesis?
- The process by which animals digest food
- The process by which plants make food using sunlight (Correct answer)
- The breakdown of rocks by weather
- The movement of water through the water cycle
Correct answer: The process by which plants make food using sunlight
Photosynthesis is the process plants use to convert sunlight, water, and carbon dioxide into glucose and oxygen.
Question 2: Which planet is closest to the Sun?
- Venus
- Earth
- Mercury (Correct answer)
- Mars
Correct answer: Mercury
Mercury is the first planet from the Sun and therefore the closest.
Question 3: What state of matter has a definite shape and a definite volume?
- Gas
- Liquid
- Plasma
- Solid (Correct answer)
Correct answer: Solid
Solids have a definite shape and volume because their particles are tightly packed.
Question 4: What is the function of the heart in the human body?
- To filter waste from the blood
- To pump blood throughout the body (Correct answer)
- To produce red blood cells
- To break down food
Correct answer: To pump blood throughout the body
The heart is a muscular organ that pumps blood through the circulatory system to deliver oxygen and nutrients.
Question 5: Which force pulls objects toward Earth?
- Magnetism
- Friction
- Gravity (Correct answer)
- Buoyancy
Correct answer: Gravity
Gravity is the force of attraction that pulls objects with mass toward Earth's center.
Question 6: What is an ecosystem?
- A single type of animal in a habitat
- All the living and nonliving things interacting in an area (Correct answer)
- Only the plants in a forest
- The weather patterns of a region
Correct answer: All the living and nonliving things interacting in an area
An ecosystem includes all living organisms and the nonliving environment they interact with in a specific area.
AASA Science and Technology 1
What is photosynthesis?