1) What part of a plant carries out photosynthesis? a) Roots b) Flowers c) Leaves d) Stem 2) Which part of the plant absorbs water and nutrients? a) Leaves b) Stem c) Roots d) Flowers 3) Which organ pumps blood around the human body? a) Brain b) Stomach c) Heart d) Liver 4) Which of these animals is a mammal? a) Frog b) Snake c) Whale d) Crocodile 5) How many legs does an insect have? a) 4 b) 6 c) 8 d) 10 6) How many bones are in the adult human body? a) 205 b) 206 c) 250 d) 300 7) What organ helps us breathe? a) Heart b) Kidney c) Lung d) Liver 8) What system controls movement and feeling in the body? a) Respiratory system b) Digestive system c) Nervous system d) Circulatory system 9) Which organ helps in digestion by producing acid? a) Heart b) Stomach c) Liver d) Pancreas 10) What is the freezing point of water in Celsius? a) 32°C b) 0°C c) 50°C d) -10°C 11) What is the boiling point of water in Celsius? a) 50°C b) 100°C c) 150°C d) 200°C 12) Which material is a good conductor of electricity? a) Plastic b) Wood c) Rubber d) Copper 13) What form of energy does a light bulb produce? a) Chemical b) Electrical c) Light d) Magnetic 14) Which state of matter has no fixed shape but a fixed volume? a) Solid b) Liquid c) Gas d) Plasma 15) What gas do plants take in for photosynthesis? a) Oxygen b) Carbon dioxide c) Nitrogen d) Hydrogen 16) Which of the following is a renewable energy source? a) Coal b) Oil c) Wind d) Natural gas 17) What causes day and night? a) Earth's revolution around the Sun b) Earth's rotation on its axis c) The Moon blocking the Sun d) Earth's tilt 18) Which layer of the Earth do we live on? a) Core b) Mantle c) Crust d) Outer core 19) Which tool is used to magnify small objects? a) Telescope b) Microscope c) Ruler d) Compass 20) What is a hypothesis? a) A proven fact b) A random guess c) A testable prediction d) A conclusion

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