Grade 7 Science Diagnostic Test worksheet - Free Printable
Educational worksheet: Grade 7 Science Diagnostic Test worksheet. Download and print for classroom or home learning activities.
JPG
1000×1291
146.3 KB
Free · Personal Use
Quality Assured by Worksheets Library Team
Reviewed for educational accuracy and age-appropriateness
ID: #967959
⭐
Show Answer Key & Explanations
Step-by-step solution for: Grade 7 Science Diagnostic Test worksheet
▼
Show Answer Key & Explanations
Step-by-step solution for: Grade 7 Science Diagnostic Test worksheet
Let's go through each question in the Life Science Diagnostic Test and solve it step by step with explanations.
---
- a. viruses → Incorrect. Viruses are not considered living organisms and do not make up organisms.
- b. cells → ✔ Correct. The cell is the basic unit of structure and function in all living things (cell theory).
- c. bacteria → Incorrect. Bacteria are a type of organism, not building blocks of all organisms.
- d. biomes → Incorrect. Biomes are large ecological areas, not parts of organisms.
✔ Answer: b. cells
---
- a. oxygen → ✔ Correct. During photosynthesis, plants take in carbon dioxide and release oxygen as a byproduct.
- b. carbon dioxide → Incorrect. Plants absorb CO₂ during photosynthesis.
- c. hydrogen → Incorrect. Not released in significant amounts.
- d. helium → Incorrect. Not involved in plant processes.
✔ Answer: a. oxygen
---
- a. habitat → ✔ Correct. A habitat is the physical environment where an organism lives.
- b. population → Incorrect. A population is a group of individuals of the same species.
- c. species → Incorrect. A species is a group of organisms that can interbreed.
- d. niche → Incorrect. Niche refers to the role or function of an organism in its environment.
✔ Answer: a. habitat
---
- a. ligaments → Incorrect. Ligaments connect bones to bones.
- b. cartilage → Incorrect. Cartilage is present in joints and nose, but not the main component.
- c. bones → ✔ Correct. The skeleton is primarily composed of bones.
- d. joints → Incorrect. Joints are points of connection between bones.
✔ Answer: c. bones
---
- a. digestive system → Incorrect. Digestive system breaks down food.
- b. circulatory system → ✔ Correct. The heart pumps blood throughout the body.
- c. nervous system → Incorrect. Nervous system controls body functions via nerves.
- d. skeletal system → Incorrect. Skeletal system provides structure and support.
✔ Answer: b. circulatory system
---
- a. data → ✔ Correct. Data is raw information gathered from experiments.
- b. graph → Incorrect. A graph is a visual representation of data.
- c. conclusion → Incorrect. Conclusion is interpretation of data.
- d. response → Incorrect. Response is a reaction, not collected information.
✔ Answer: a. data
---
- a. their roots → Incorrect. Roots absorb water and minerals, not energy for photosynthesis.
- b. the Sun → ✔ Correct. Light energy from the sun drives photosynthesis.
- c. water → Incorrect. Water is a reactant, not the source of energy.
- d. soil → Incorrect. Soil provides nutrients, not light energy.
✔ Answer: b. the Sun
---
- a. cells → Incorrect. Organisms don't consume cells directly.
- b. DNA → Incorrect. DNA is genetic material, not used for energy.
- c. oxygen → Incorrect. Oxygen is used in respiration, but not obtained *from* food.
- d. nutrients → ✔ Correct. Nutrients (like carbohydrates, proteins, fats) provide energy and materials for growth.
✔ Answer: d. nutrients
---
- a. computer → Incorrect. Not designed for viewing small objects.
- b. X-ray → Incorrect. Used for imaging inside bodies, not magnifying small things.
- c. microscope → ✔ Correct. Microscopes magnify tiny structures like cells.
- d. telescope → Incorrect. Used to view distant objects in space.
✔ Answer: c. microscope
---
- a. immune system → ✔ Correct. Immune system defends against pathogens.
- b. digestive system → Incorrect. Breaks down food.
- c. nervous system → Incorrect. Controls responses and communication.
- d. circulatory system → Incorrect. Transports blood and substances.
✔ Answer: a. immune system
---
- a. warm-blooded vertebrates → Incorrect. These animals are cold-blooded.
- b. cold-blooded vertebrates → ✔ Correct. They rely on external heat sources; have backbones.
- c. warm-blooded invertebrates → Incorrect. They have backbones (vertebrates).
- d. cold-blooded invertebrates → Incorrect. They are vertebrates.
✔ Answer: b. cold-blooded vertebrates
---
- a. Fungi → Incorrect. Fungi include mushrooms and yeasts.
- b. Protista → Incorrect. Protists are mostly single-celled eukaryotes.
- c. Animalia → ✔ Correct. All these are multicellular, heterotrophic animals.
- d. Plantae → Incorrect. Plants are autotrophs with cell walls.
✔ Answer: c. Animalia
---
- a. scales → Incorrect. Scales protect the body.
- b. lungs → Incorrect. Some fish have lungs, but most use gills.
- c. blood → Incorrect. Blood transports oxygen, but doesn't extract it.
- d. gills → ✔ Correct. Gills extract oxygen from water.
✔ Answer: d. gills
---
- a. tissues → Incorrect. Tissues are made of cells.
- b. cells → ✔ Correct. Cells are the fundamental units of life.
- c. organ systems → Incorrect. Higher level of organization.
- d. muscles → Incorrect. Muscles are tissue types.
✔ Answer: b. cells
---
- a. veins → ✔ Correct. Veins carry deoxygenated blood back to the heart (except pulmonary veins).
- b. capillaries → Incorrect. Capillaries exchange substances between blood and tissues.
- c. arteries → Incorrect. Arteries carry blood away from the heart.
- d. valves → Incorrect. Valves prevent backflow in blood vessels.
✔ Answer: a. veins
---
- a. bacteria → Correct. Can cause infections (e.g., strep throat).
- b. viruses → Correct. Cause diseases like flu or COVID-19.
- c. fungi → Correct. Cause infections like athlete’s foot.
- d. bacteria, viruses, and fungi → ✔ Correct. All three can cause infections.
✔ Answer: d. bacteria, viruses, and fungi
---
1. b
2. a
3. a
4. c
5. b
6. a
7. b
8. d
9. c
10. a
11. b
12. c
13. d
14. b
15. a
16. d
---
This test covers foundational concepts in life science: cells, body systems, ecology, classification, and health. Each answer aligns with standard biology knowledge. Let me know if you'd like a printable version or study guide!
---
1. Every organism is made up of one or more
- a. viruses → Incorrect. Viruses are not considered living organisms and do not make up organisms.
- b. cells → ✔ Correct. The cell is the basic unit of structure and function in all living things (cell theory).
- c. bacteria → Incorrect. Bacteria are a type of organism, not building blocks of all organisms.
- d. biomes → Incorrect. Biomes are large ecological areas, not parts of organisms.
✔ Answer: b. cells
---
2. Plants give off
- a. oxygen → ✔ Correct. During photosynthesis, plants take in carbon dioxide and release oxygen as a byproduct.
- b. carbon dioxide → Incorrect. Plants absorb CO₂ during photosynthesis.
- c. hydrogen → Incorrect. Not released in significant amounts.
- d. helium → Incorrect. Not involved in plant processes.
✔ Answer: a. oxygen
---
3. The place in which an organism lives is its
- a. habitat → ✔ Correct. A habitat is the physical environment where an organism lives.
- b. population → Incorrect. A population is a group of individuals of the same species.
- c. species → Incorrect. A species is a group of organisms that can interbreed.
- d. niche → Incorrect. Niche refers to the role or function of an organism in its environment.
✔ Answer: a. habitat
---
4. Most of the human skeletal system is made up of
- a. ligaments → Incorrect. Ligaments connect bones to bones.
- b. cartilage → Incorrect. Cartilage is present in joints and nose, but not the main component.
- c. bones → ✔ Correct. The skeleton is primarily composed of bones.
- d. joints → Incorrect. Joints are points of connection between bones.
✔ Answer: c. bones
---
5. The heart is part of the
- a. digestive system → Incorrect. Digestive system breaks down food.
- b. circulatory system → ✔ Correct. The heart pumps blood throughout the body.
- c. nervous system → Incorrect. Nervous system controls body functions via nerves.
- d. skeletal system → Incorrect. Skeletal system provides structure and support.
✔ Answer: b. circulatory system
---
6. Information collected in an experiment is called
- a. data → ✔ Correct. Data is raw information gathered from experiments.
- b. graph → Incorrect. A graph is a visual representation of data.
- c. conclusion → Incorrect. Conclusion is interpretation of data.
- d. response → Incorrect. Response is a reaction, not collected information.
✔ Answer: a. data
---
7. Plants are able to carry out photosynthesis using energy from
- a. their roots → Incorrect. Roots absorb water and minerals, not energy for photosynthesis.
- b. the Sun → ✔ Correct. Light energy from the sun drives photosynthesis.
- c. water → Incorrect. Water is a reactant, not the source of energy.
- d. soil → Incorrect. Soil provides nutrients, not light energy.
✔ Answer: b. the Sun
---
8. What do organisms obtain in food for growth and energy?
- a. cells → Incorrect. Organisms don't consume cells directly.
- b. DNA → Incorrect. DNA is genetic material, not used for energy.
- c. oxygen → Incorrect. Oxygen is used in respiration, but not obtained *from* food.
- d. nutrients → ✔ Correct. Nutrients (like carbohydrates, proteins, fats) provide energy and materials for growth.
✔ Answer: d. nutrients
---
9. A tool used to see very small things is a
- a. computer → Incorrect. Not designed for viewing small objects.
- b. X-ray → Incorrect. Used for imaging inside bodies, not magnifying small things.
- c. microscope → ✔ Correct. Microscopes magnify tiny structures like cells.
- d. telescope → Incorrect. Used to view distant objects in space.
✔ Answer: c. microscope
---
10. The human body system that protects the body from diseases is the
- a. immune system → ✔ Correct. Immune system defends against pathogens.
- b. digestive system → Incorrect. Breaks down food.
- c. nervous system → Incorrect. Controls responses and communication.
- d. circulatory system → Incorrect. Transports blood and substances.
✔ Answer: a. immune system
---
11. Reptiles, fish, and amphibians are all
- a. warm-blooded vertebrates → Incorrect. These animals are cold-blooded.
- b. cold-blooded vertebrates → ✔ Correct. They rely on external heat sources; have backbones.
- c. warm-blooded invertebrates → Incorrect. They have backbones (vertebrates).
- d. cold-blooded invertebrates → Incorrect. They are vertebrates.
✔ Answer: b. cold-blooded vertebrates
---
12. Birds, reptiles, fish, and mammals belong to the kingdom
- a. Fungi → Incorrect. Fungi include mushrooms and yeasts.
- b. Protista → Incorrect. Protists are mostly single-celled eukaryotes.
- c. Animalia → ✔ Correct. All these are multicellular, heterotrophic animals.
- d. Plantae → Incorrect. Plants are autotrophs with cell walls.
✔ Answer: c. Animalia
---
13. What do fish use to breathe?
- a. scales → Incorrect. Scales protect the body.
- b. lungs → Incorrect. Some fish have lungs, but most use gills.
- c. blood → Incorrect. Blood transports oxygen, but doesn't extract it.
- d. gills → ✔ Correct. Gills extract oxygen from water.
✔ Answer: d. gills
---
14. The basic building blocks of all living things are
- a. tissues → Incorrect. Tissues are made of cells.
- b. cells → ✔ Correct. Cells are the fundamental units of life.
- c. organ systems → Incorrect. Higher level of organization.
- d. muscles → Incorrect. Muscles are tissue types.
✔ Answer: b. cells
---
15. The blood vessels that carry blood back to the heart are
- a. veins → ✔ Correct. Veins carry deoxygenated blood back to the heart (except pulmonary veins).
- b. capillaries → Incorrect. Capillaries exchange substances between blood and tissues.
- c. arteries → Incorrect. Arteries carry blood away from the heart.
- d. valves → Incorrect. Valves prevent backflow in blood vessels.
✔ Answer: a. veins
---
16. Which of the following organisms can cause infections in humans?
- a. bacteria → Correct. Can cause infections (e.g., strep throat).
- b. viruses → Correct. Cause diseases like flu or COVID-19.
- c. fungi → Correct. Cause infections like athlete’s foot.
- d. bacteria, viruses, and fungi → ✔ Correct. All three can cause infections.
✔ Answer: d. bacteria, viruses, and fungi
---
✔ Final Answers:
1. b
2. a
3. a
4. c
5. b
6. a
7. b
8. d
9. c
10. a
11. b
12. c
13. d
14. b
15. a
16. d
---
This test covers foundational concepts in life science: cells, body systems, ecology, classification, and health. Each answer aligns with standard biology knowledge. Let me know if you'd like a printable version or study guide!
Parent Tip: Review the logic above to help your child master the concept of pearson education science worksheet answers.
