1. In which part of a plant does photosynthesis take place?

A. Roots       B. Stem       C. Leaves       D. Flowers

2. Which of the following is NOT a renewable resource?

A. Solar energy       B. Coal       C. Wind energy       D. Water

3. What is the process of changing a liquid into a gas called?

A. Evaporation       B. Condensation       C. Expansion       D. Contraction

4. What is the unit used to measure the force of gravity acting on an object?

A. Meter       B. Newton       C. Liter       D. Second

5. Which of the following materials is an insulator?

A. Metal       B. Rubber       C. Wood       D. Copper

6. What is the process of changing a gas into a liquid called?

A. Evaporation       B. Condensation       C. Expansion       D. Contraction

7. Which of the following is a mixture?

A. Air       B. Salt       C. Steel       D. Water

8. What is the process of separating a mixture of two liquids called?

A. Filtration       B. Decantation       C. Distillation       D. Evaporation

9. What is the function of the heart?

A. To pump blood throughout the body       B. To take in oxygen       C. To remove waste products       D. All of the above

10. What are the tiny air sacs in the lungs called?

A. Trachea       B. Bronchi       C. Alveoli       D. Diaphragm

11. Which of the following is an example of a balanced diet?

A. Only fruits and vegetables       B. Only carbohydrates       C. A variety of foods from all food groups       D. Only sweets and snacks

12. What is the deficiency disease caused by a lack of vitamin C?

A. Scurvy       B. Rickets       C. Goiter       D. Anemia

13. Which of the following diseases can be transmitted through contaminated water?

A. Malaria       B. Cholera       C. Measles       D. Mumps

14. What is the process of breaking down food into smaller particles called?

A. Digestion       B. Respiration       C. Circulation       D. Excretion

15. What is the outer layer of the Earth called?

A. Inner core       B. Outer core       C. Mantle       D. Crust

16. What is the layer of the Earth that is made up of molten rock?

A. Inner core       B. Outer core       C. Mantle       D. Crust

17. What is the instrument used to measure the temperature called?

A. Thermometer       B. Barometer       C. Anemometer       D. Rain gauge

18. What is the instrument used to measure wind speed called?

A. Thermometer       B. Barometer       C. Anemometer       D. Rain gauge

19. What is the cycle of water moving from the Earth’s surface to the atmosphere and back again called?

A. Water cycle       B. Carbon cycle       C. Nitrogen cycle       D. Oxygen cycle

20. What is the process of removing salt from water called?

A. Filtration       B. Desalination       C. Distillation       D. Evaporation

21. What is the process of making fabrics from natural fibers called?

A. Weaving       B. Spinning       C. Knitting       D. All of the above

22. What is the process of making new plants from seeds called?

A. Germination       B. Pollination       C. Photosynthesis       D. Transpiration

23. What is the process of transferring pollen from the stamen to the pistil called?

A. Germination       B. Pollination       C. Photosynthesis       D. Transpiration

24. What is the outermost layer of a seed called?

A. Seed coat       B. Cotyledon       C. Plumule       D. Radicle

25. What is the importance of decomposers in an ecosystem?

A. They break down dead organisms and return nutrients to the soil.       B. They produce oxygen for other organisms.       C. They are the primary producers in the food chain.       D. They eat other animals.

26. What is the difference between a carnivore and an herbivore?

27. What is the difference between a carnivore and an herbivore?

A. A carnivore eats plants, while an herbivore eats animals.

B. A carnivore has sharp teeth, while an herbivore has flat teeth.

C. A carnivore is a producer, while an herbivore is a consumer.

D. A carnivore lives on land, while an herbivore lives in water.

28. What type of energy is used to light a bulb?

A. Electrical energy      B. Chemical energy      C. Potential energy      D. Kinetic energy

29. What is the process of separating a mixture of solids and liquids called?

A. Filtration      B. Decantation      C. Distillation      D. Evaporation

30. What is the name of the tool used to cut and shape wood?

A. Hammer      B. Saw      C. Drill      D. Wrench

Here are 10 additional questions to complete your 40-question exam:

31. What is the name of the largest bone in the human body?

A. Femur       B. Tibia       C. Fibula       D. Humerus

32. Which of the following is NOT a sense?

A. Taste       B. Smell       C. Sight       D. Balance

33. What is the process of removing waste products from the body called?

A. Digestion       B. Respiration       C. Circulation       D. Excretion

34. What is the name of the gas that makes up most of the Earth’s atmosphere?

A. Oxygen       B. Nitrogen       C. Carbon dioxide       D. Helium

35. Which of the following materials is a conductor of electricity?

A. Plastic       B. Rubber       C. Metal       D. Wood

36. What is the process of sound waves traveling through a medium called?

A. Vibration       B. Reflection       C. Refraction       D. Transmission

37. What is the name of the device used to measure the amount of electricity used?

A. Ammeter       B. Voltmeter       C. Transformer       D. Meter

38. What is the process of changing the position of an object called?

A. Motion       B. Force       C. Gravity       D. Energy

39. What is the name of the machine that makes work easier by changing the direction or size of a force?

A. Lever       B. Screw       C. Wedge       D. Inclined plane

40. What is the process of using machines to make work easier called?

A. Automation       B. Robotics       C. Mechanics       D. Engineering