1. Which of the following best explains the importance of Integrated Science in everyday life?
A. It is only useful in laboratories
B. It helps individuals understand and solve real-life problems using scientific knowledge
C. It is only needed for exams
D. It is not important
Answer: B
Explanation: Integrated Science connects scientific knowledge to real-life situations such as health, environment, and technology.
2. A teacher explains that science involves observation, experimentation, and conclusion. Which scientific skill is primarily being described?
A. Communication
B. Scientific process skills
C. Measurement
D. Classification
Answer: B
Explanation: Scientific process skills include observing, experimenting, and drawing conclusions.
3. Which of the following scenarios best demonstrates the concept of matter?
A. Light traveling in space
B. Air filling a balloon and increasing its size
C. Sound moving through air
D. Heat from the sun
Answer: B
Explanation: Matter has mass and occupies space; air inflating a balloon shows this.
4. A student groups objects based on color, size, and shape. Which scientific skill is being applied?
A. Measurement
B. Classification
C. Prediction
D. Communication
Answer: B
Explanation: Classification involves grouping based on similarities.
5. Which statement best describes the difference between living and non-living things?
A. Living things move faster
B. Living things perform life processes such as growth and reproduction
C. Non-living things are larger
D. Non-living things breathe
Answer: B
Explanation: Life processes distinguish living things.
6. When conducting an experiment, why is it important to keep some variables constant?
A. To confuse results
B. To ensure a fair test
C. To waste time
D. To avoid results
Answer: B
Explanation: Controlled variables ensure reliable results.
7. Which example best illustrates energy transformation?
A. A book lying on a table
B. A fan converting electrical energy into mechanical energy
C. A stone on the ground
D. A chair in a room
Answer: B
Explanation: Energy changes from one form to another.
8. A student uses a thermometer to measure temperature. Which scientific skill is demonstrated?
A. Observation
B. Measurement
C. Prediction
D. Classification
Answer: B
Explanation: Using instruments to obtain values is measurement.
9. Why is water important to living organisms?
A. It is only for drinking
B. It supports life processes like digestion and transport
C. It is not important
D. It is only for washing
Answer: B
Explanation: Water is essential for survival and biological functions.
10. Which statement best explains the role of the sun in the ecosystem?
A. It provides darkness
B. It is the main source of energy
C. It controls wind only
D. It has no role
Answer: B
Explanation: The sun drives most natural processes on Earth.
11. A farmer observes that crops grow better with fertilizer. What type of scientific skill is this?
A. Observation
B. Prediction
C. Experimentation
D. Classification
Answer: A
Explanation: The farmer is observing results.
12. Which of the following is a renewable resource?
A. Coal
B. Oil
C. Solar energy
D. Gas
Answer: C
Explanation: Solar energy is naturally replenished.
13. Why is classification important in science?
A. It wastes time
B. It helps organize and understand information
C. It is not useful
D. It complicates learning
Answer: B
Explanation: It simplifies understanding.
14. Which example shows adaptation in living organisms?
A. A rock breaking
B. A camel storing water
C. A chair moving
D. A car running
Answer: B
Explanation: Adaptation helps survival.
15. What is the main function of the human respiratory system?
A. Digestion
B. Breathing and gas exchange
C. Movement
D. Circulation
Answer: B
Explanation: It exchanges oxygen and carbon dioxide.
16. Which factor is most important for plant growth?
A. Light
B. Sound
C. Color
D. Shape
Answer: A
Explanation: Light is needed for photosynthesis.
17. Why do scientists use experiments?
A. To guess
B. To test ideas
C. To waste time
D. To confuse
Answer: B
Explanation: Experiments test hypotheses.
18. Which of the following best describes force?
A. Energy
B. Push or pull
C. Light
D. Sound
Answer: B
Explanation: Force causes motion.
19. What happens when heat is added to a substance?
A. It always freezes
B. It may expand
C. It disappears
D. Nothing happens
Answer: B
Explanation: Heat increases particle movement.
20. Which example shows a physical change?
A. Burning paper
B. Melting ice
C. Rusting iron
D. Cooking food
Answer: B
Explanation: No new substance is formed.
21. Why is the environment important to humans?
A. It is useless
B. It provides resources and supports life
C. It is only for animals
D. It has no value
Answer: B
Explanation: Humans depend on the environment.
22. Which tool is used to measure mass?
A. Thermometer
B. Balance
C. Ruler
D. Clock
Answer: B
Explanation: Mass is measured using a balance.
23. Which process do plants use to make food?
A. Respiration
B. Photosynthesis
C. Digestion
D. Excretion
Answer: B
Explanation: Plants produce food using sunlight.
24. Why is soil important?
A. It is useless
B. It supports plant growth
C. It is only dirt
D. It is not needed
Answer: B
Explanation: Soil provides nutrients.
25. Which of the following is an example of non-living thing?
A. Tree
B. Animal
C. Rock
D. Human
Answer: C
Explanation: Rocks do not carry out life processes.
26. Why is clean water important?
A. It tastes good
B. It prevents diseases
C. It is colorful
D. It is expensive
Answer: B
Explanation: Clean water protects health.
27. Which form of energy is stored in food?
A. Light
B. Chemical
C. Heat
D. Sound
Answer: B
Explanation: Food stores chemical energy.
28. What is the function of roots in plants?
A. Photosynthesis
B. Absorb water and nutrients
C. Reproduction
D. Breathing
Answer: B
Explanation: Roots take in water and minerals.
29. Which factor affects evaporation?
A. Temperature
B. Color
C. Shape
D. Size
Answer: A
Explanation: Higher temperature increases evaporation.
30. Why is recycling important?
A. It wastes time
B. It conserves resources
C. It pollutes
D. It is useless
Answer: B
Explanation: Recycling reduces waste.
31. Which organ pumps blood in humans?
A. Brain
B. Heart
C. Lungs
D. Kidney
Answer: B
Explanation: The heart circulates blood.
32. Which example shows motion?
A. A parked car
B. A moving bicycle
C. A building
D. A tree
Answer: B
Explanation: Motion involves movement.
33. Why is science important in technology?
A. It is not related
B. It drives innovation
C. It delays progress
D. It is useless
Answer: B
Explanation: Science leads to inventions.
34. Which type of energy is from the sun?
A. Nuclear
B. Solar
C. Chemical
D. Sound
Answer: B
Explanation: Solar energy comes from the sun.
35. What is pollution?
A. Clean air
B. Contamination of environment
C. Fresh water
D. Good soil
Answer: B
Explanation: Pollution harms the environment.
36. Which example shows gravity?
A. A bird flying
B. A stone falling
C. A car moving
D. A fan rotating
Answer: B
Explanation: Gravity pulls objects down.
37. Why do we need food?
A. For fun
B. For energy and growth
C. For color
D. For noise
Answer: B
Explanation: Food provides nutrients.
38. Which gas do humans need for breathing?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen
Answer: B
Explanation: Oxygen is required for respiration.
39. Which is a source of light?
A. Moon
B. Sun
C. Mirror
D. Water
Answer: B
Explanation: The sun produces light.
40. Why is scientific knowledge important?
A. It is useless
B. It helps solve problems
C. It wastes time
D. It confuses people
Answer: B
Explanation: Science improves life and solves challenges.