Title: General (Demo) / Science
Tags: demo general science

Question: What is the chemical formula for water?
Explanation: Water is two hydrogens and one oxygen: H₂O.
Other fields (not shown on cards):
Choices: CO₂
H₂O
O₂
NaCl
Correct: B

Question: Which planet is known as the Red Planet?
Explanation: Iron oxide gives Mars its red color.
Other fields (not shown on cards):
Choices: Venus
Mars
Jupiter
Saturn
Correct: B

Question: Which gas do plants absorb for photosynthesis?
Explanation: Plants take in CO₂ and release oxygen.
Other fields (not shown on cards):
Choices: Oxygen
Carbon dioxide
Nitrogen
Hydrogen
Correct: B

Question: Which planet is closest to the Sun?
Explanation: Mercury is the innermost planet.
Other fields (not shown on cards):
Choices: Earth
Mercury
Venus
Mars
Correct: B

Question: Which organelle is called the "powerhouse of the cell"?
Explanation: Mitochondria produce most of the cell's ATP.
Other fields (not shown on cards):
Choices: Nucleus
Mitochondrion
Ribosome
Golgi apparatus
Correct: B

Question: Approximately how fast does light travel in a vacuum?
Explanation: Light travels about 300,000 km per second.
Other fields (not shown on cards):
Choices: 300 km/s
3,000 km/s
300,000 km/s
30 km/s
Correct: C