1. Which of the following best defines Integrated Science?
A. Study of only biology
B. Combination of different science disciplines
C. Study of chemistry only
D. Study of physics only
Answer: B
Explanation: Integrated Science combines biology, chemistry, and physics concepts.
2. Which branch of science deals with living organisms?
A. Physics
B. Chemistry
C. Biology
D. Astronomy
Answer: C
Explanation: Biology studies living things.
3. Which of the following is a non-living thing?
A. Plant
B. Animal
C. Rock
D. Human
Answer: C
Explanation: Rocks do not have life processes.
4. Which process do plants use to make food?
A. Respiration
B. Photosynthesis
C. Digestion
D. Excretion
Answer: B
Explanation: Plants use sunlight to produce food through photosynthesis.
5. Which gas is required for respiration?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen
Answer: B
Explanation: Oxygen is used to release energy from food.
6. Which organ pumps blood in the human body?
A. Brain
B. Heart
C. Lungs
D. Liver
Answer: B
Explanation: The heart circulates blood.
7. Which of the following is a source of energy?
A. Stone
B. Food
C. Sand
D. Water only
Answer: B
Explanation: Food provides energy for living organisms.
8. Matter is anything that:
A. Cannot be seen
B. Has mass and occupies space
C. Is only solid
D. Is only liquid
Answer: B
Explanation: Matter includes solids, liquids, and gases.
9. Which state of matter has definite shape and volume?
A. Liquid
B. Gas
C. Solid
D. Plasma
Answer: C
Explanation: Solids have fixed shape and volume.
10. Which of the following is an example of a chemical change?
A. Melting ice
B. Burning paper
C. Cutting wood
D. Breaking glass
Answer: B
Explanation: Burning forms new substances.
11. Which instrument measures temperature?
A. Barometer
B. Thermometer
C. Balance
D. Ruler
Answer: B
Explanation: Thermometers measure temperature.
12. Which force pulls objects toward the Earth?
A. Friction
B. Magnetism
C. Gravity
D. Tension
Answer: C
Explanation: Gravity attracts objects to Earth.
13. Energy is defined as:
A. Ability to sleep
B. Ability to do work
C. Matter
D. Force
Answer: B
Explanation: Energy enables work to be done.
14. Which type of energy is stored in food?
A. Kinetic
B. Potential
C. Chemical
D. Electrical
Answer: C
Explanation: Food stores chemical energy.
15. Which organ is responsible for breathing?
A. Heart
B. Lungs
C. Brain
D. Kidney
Answer: B
Explanation: Lungs exchange gases.
16. Which of the following is renewable energy?
A. Coal
B. Oil
C. Solar
D. Gas
Answer: C
Explanation: Solar energy is renewable.
17. Which part of a plant conducts water?
A. Leaf
B. Stem
C. Root
D. Flower
Answer: B
Explanation: Stem transports water.
18. Which of the following is a vertebrate?
A. Worm
B. Snake
C. Insect
D. Snail
Answer: B
Explanation: Vertebrates have backbones.
19. Which sense organ is used for seeing?
A. Ear
B. Nose
C. Eye
D. Skin
Answer: C
Explanation: Eyes detect light.
20. Which gas do plants release during photosynthesis?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen
Answer: B
Explanation: Oxygen is released.
21. Which of the following is a physical change?
A. Burning
B. Rusting
C. Melting
D. Cooking
Answer: C
Explanation: Physical changes do not form new substances.
22. Which of the following is a simple machine?
A. Computer
B. Lever
C. Phone
D. Television
Answer: B
Explanation: A lever makes work easier.
23. Which form of energy is associated with motion?
A. Potential
B. Chemical
C. Kinetic
D. Heat
Answer: C
Explanation: Kinetic energy is energy of motion.
24. Which organ controls the body?
A. Heart
B. Brain
C. Lungs
D. Liver
Answer: B
Explanation: Brain controls activities.
25. Which of the following is a mixture?
A. Water
B. Air
C. Salt
D. Sugar
Answer: B
Explanation: Air is a mixture of gases.
26. Which process removes waste from the body?
A. Respiration
B. Digestion
C. Excretion
D. Circulation
Answer: C
Explanation: Excretion removes waste.
27. Which part of the plant makes food?
A. Root
B. Stem
C. Leaf
D. Flower
Answer: C
Explanation: Leaves carry out photosynthesis.
28. Which type of energy comes from the sun?
A. Chemical
B. Solar
C. Mechanical
D. Electrical
Answer: B
Explanation: Solar energy comes from the sun.
29. Which force opposes motion?
A. Gravity
B. Friction
C. Magnetism
D. Tension
Answer: B
Explanation: Friction resists movement.
30. Which of the following is a conductor of electricity?
A. Plastic
B. Rubber
C. Copper
D. Wood
Answer: C
Explanation: Metals conduct electricity.
31. Which system transports nutrients in plants?
A. Digestive
B. Circulatory
C. Vascular
D. Respiratory
Answer: C
Explanation: Xylem and phloem transport materials.
32. Which of the following is an example of force?
A. Push
B. Pull
C. Both A and B
D. None
Answer: C
Explanation: Force includes push and pull.
33. Which of the following causes day and night?
A. Revolution
B. Rotation
C. Gravity
D. Energy
Answer: B
Explanation: Earth rotates on its axis.
34. Which of the following is a habitat?
A. Desert
B. Ocean
C. Forest
D. All of the above
Answer: D
Explanation: Habitats are natural environments.
35. Which nutrient builds the body?
A. Carbohydrates
B. Proteins
C. Fats
D. Vitamins
Answer: B
Explanation: Proteins help growth.
36. Which of the following is a fossil fuel?
A. Solar
B. Wind
C. Coal
D. Water
Answer: C
Explanation: Coal is non-renewable.
37. Which organ filters blood?
A. Heart
B. Kidney
C. Brain
D. Lungs
Answer: B
Explanation: Kidneys remove waste.
38. Which type of energy is heat?
A. Thermal
B. Mechanical
C. Chemical
D. Electrical
Answer: A
Explanation: Heat energy is thermal energy.
39. Which process breaks down food?
A. Respiration
B. Digestion
C. Circulation
D. Excretion
Answer: B
Explanation: Digestion breaks food into nutrients.
40. Integrated Science helps learners to:
A. Ignore environment
B. Understand natural world
C. Avoid science
D. Confuse concepts
Answer: B
Explanation: It builds scientific understanding.