Pack: Science
Q: What gas do plants absorb from the air for photosynthesis?
A: Oxygen
B: Nitrogen
C: Carbon dioxide
D: Hydrogen
Answer: C
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Q: What is the chemical symbol for water?
A: H2O
B: CO2
C: O2
D: NaCl
Answer: A
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Q: How many bones are in the adult human body?
A: 186
B: 206
C: 226
D: 246
Answer: B
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Q: Which planet is closest to the Sun?
A: Earth
B: Venus
C: Mercury
D: Mars
Answer: C
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Q: What is the powerhouse of the cell?
A: Nucleus
B: Ribosome
C: Mitochondrion
D: Vacuole
Answer: C
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Q: What force pulls objects toward the Earth?
A: Magnetism
B: Gravity
C: Friction
D: Tension
Answer: B
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Q: What is the chemical symbol for gold?
A: Go
B: Gd
C: Ag
D: Au
Answer: D
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Q: At what temperature does water freeze in Celsius?
A: 0 degrees
B: 10 degrees
C: 32 degrees
D: 100 degrees
Answer: A
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Q: Which gas makes up most of Earth's atmosphere?
A: Oxygen
B: Nitrogen
C: Carbon dioxide
D: Argon
Answer: B
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Q: What organ pumps blood through the body?
A: Lungs
B: Liver
C: Heart
D: Kidney
Answer: C
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Q: What is the speed of light approximately?
A: 300,000 km per second
B: 30,000 km per second
C: 3,000 km per second
D: 300 km per second
Answer: A
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Q: Which scientist proposed the theory of general relativity?
A: Isaac Newton
B: Albert Einstein
C: Galileo Galilei
D: Niels Bohr
Answer: B
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Q: What is the hardest known natural material?
A: Quartz
B: Iron
C: Diamond
D: Granite
Answer: C
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Q: How many chambers does a human heart have?
A: 2
B: 3
C: 4
D: 5
Answer: C
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Q: What type of animal is a dolphin?
A: Fish
B: Mammal
C: Reptile
D: Amphibian
Answer: B
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