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Science basics: 8 questions
Everyday science for grades 4 to 7. Play it live on phones with a QR code, or use the questions as they are.
The questions
What is the chemical formula for water?
- CO2
- H2O
- O2
- NaCl
Show answer
H2O
Which gas do plants take in to make food?
- Oxygen
- Nitrogen
- Carbon dioxide
- Hydrogen
Show answer
Carbon dioxide
Which planet is closest to the Sun?
- Venus
- Earth
- Mercury
- Mars
Show answer
Mercury
At sea level, at what temperature does water boil?
Show answer
100 degrees Celsius
Which organ pumps blood around the body?
- Lungs
- Heart
- Liver
- Stomach
Show answer
Heart
Sound travels faster through air than light does.
- True
- False
Show answer
False . Light is far faster, which is why you see lightning before you hear thunder.
How many bones does a typical adult human have?
Show answer
206
Put these planets in order, starting nearest the Sun.
Show answer
Mercury → Venus → Earth → Mars