General Science Test 1

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Online General Science Test 1 for different Competitive Exams, Entrance Tests & Job Interviews. Test yourself. Take various online tests and find out how well you score before appearing in your upcoming interviews and written tests.

Instructions

Welcome to our FREE online test. Beware of anyone asking for money to take this test.

Total questions: 20

Time limit: 30 minutes

Each question is worth 1 point, and there are no penalties for wrong answers.

DO NOT refresh the page.

Good luck!

Time remaining: 30:00
1. What is the chemical symbol for water?
  1. H2O
  2. Wt
  3. O2
  4. CO2
2. What is the unit of measurement for electrical resistance?
  1. Joule
  2. Volt
  3. Ohm
  4. Ampere
3. What is the process by which plants make their food?
  1. Photosynthesis
  2. Respiration
  3. Fermentation
  4. Oxidation
4. What is the largest organ in the human body?
  1. Liver
  2. Skin
  3. Heart
  4. Brain
5. Which planet is known as the “Red Planet”?
  1. Venus
  2. Jupiter
  3. Saturn
  4. Mars
6. What is the primary function of the mitochondria?
  1. Synthesizing proteins
  2. Producing energy
  3. Storing genetic information
  4. Detoxifying harmful substances
7. What causes the tides in the Earth’s oceans?
  1. Gravitational pull of the moon
  2. Earth’s rotation
  3. Solar radiation
  4. Underwater earthquakes
8. Which of the following is NOT a type of cloud?
  1. Cumulus
  2. Stratus
  3. Cirrus
  4. Tectonic
9. What is the smallest bone in the human body?
  1. Femur
  2. Stapes
  3. Tibia
  4. Humerus
10. What is the study of fossils called?
  1. Paleontology
  2. Seismology
  3. Entomology
  4. Ornithology
11. What is the speed of light in a vacuum?
  1. 300,000 km/s
  2. Approximately 299,792 km/s
  3. 150,000 km/s
  4. 500,000 km/s
12. What is the name of the process by which plants lose water vapor through their leaves?
  1. Photosynthesis
  2. Transfusion
  3. Transpiration
  4. Absorption
13. Which of the following is NOT a greenhouse gas?
  1. Carbon dioxide
  2. Methane
  3. Nitrogen
  4. Water vapor
14. What is the chemical symbol for table salt?
  1. Ts
  2. NaCl
  3. Cl2
  4. H2O
15. What is the chemical formula for sulfuric acid?
  1. H2SO4
  2. NaOH
  3. HCl
  4. CO2
16. What is the process by which plants convert light energy into chemical energy?
  1. Photosynthesis
  2. Respiration
  3. Fermentation
  4. Combustion
17. What is the process by which rocks are broken down into smaller pieces?
  1. Condensation
  2. Erosion
  3. Weathering
  4. Fossilization
18. Which gas makes up the majority of Earth’s atmosphere?
  1. Nitrogen
  2. Oxygen
  3. Carbon dioxide
  4. Hydrogen
19. What is the chemical symbol for gold?
  1. Ag
  2. Au
  3. Pt
  4. Fe
20. What is the process by which water changes from a liquid to a gas?
  1. Freezing
  2. Condensation
  3. Melting
  4. Evaporation
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