7th Grade General Knowledge Quiz | 20 Questions with Answers Middle School
7th Grade General Knowledge Quiz! 20 middle school questions: Earth 23.5° tilt seasons, mitochondria ATP powerhouse, 3 US gov branches, 26th Amendment voting age 18, blue whale largest mammal.
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Middle school 7th grade GK quiz: Earth axial tilt causes seasons, mitochondria cell powerhouse ATP, 3 branches government checks balances, 26th Amendment voting 18, blue whale 200 tons largest mammal!
20 Grade 7 GK questions for US middle schoolers! Science, history, geography, civics. NGSS/CCSS aligned. 70% (14/20) to PASS!
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7th Grade General Knowledge SUPERSTAR! 🏆
You’ve mastered Earth’s tilt (seasons), mitochondria (cell power), 3 government branches, and 26th Amendment voting rights.
Perfect middle school trivia champion—challenge your classmates!
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Great GK practice session!
7th grade trivia builds with daily facts: solar system, US amendments, basic geometry, and civics review.
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#1. What is 90° angle called?
Explanation: Right angle = exactly 90°. Square corners, L-shape.
#2. First moon landing (1969)?
Explanation: Apollo 11. “One small step for man, one giant leap for mankind.” Tranquility Base.
#3. Which organ pumps blood?
Explanation: 100,000 beats/day. Right side → lungs, left → body. Fist-sized, 4 chambers.
#4. Which amendment gives voting rights (age 18)?
Explanation: 26th Amendment (1971): lowered voting age from 21. Vietnam War protest (“old enough to fight”).
#5. What is the powerhouse of the cell?
Explanation: ATP production: C₆H₁₂O₆ + O₂ → CO₂ + H₂O + energy. Own DNA (maternal inheritance).
#6. What is the currency of United States?
Explanation: $ symbol from Spanish peso (pieces of eight). Federal Reserve prints.
#7. Largest mammal on Earth?
Explanation: Blue whale: 100 ft, 200 tons. Heart = car size. Tongue = elephant weight.
#8. Chemical symbol for water?
Explanation: 2 hydrogen + 1 oxygen atoms. Covalent bonds. Universal solvent.
#9. How many players on soccer field per team?
Explanation: 11 players/team (goalkeeper + 10 field). FIFA World Cup most watched.
#10. What is the study of stars/planets called?
Explanation: Telescopes, space probes. NASA Hubble/JWST observatories.
#11. What causes seasons on Earth?
Explanation: Tilt + orbit = varying sunlight (summer 15 hours, winter 9 hours). Equator consistent 12/12.
#12. How many branches of US government?
Explanation: Legislative (Congress), Executive (President), Judicial (Supreme Court). Checks and balances.
#13. What is tallest mountain in world?
Explanation: 29,032 ft (Nepal/Tibet). First summited 1953 (Edmund Hillary/Tenzing Norgay).
#14. Photosynthesis equation starts with?
Explanation: 6CO₂ + 6H₂O + sunlight → C₆H₁₂O₆ + 6O₂. Plants “food factories.”
#15. What force pulls objects toward Earth center?
Explanation: Newton’s Universal Gravitation. F = G(m₁m₂/r²). Moon tides.
#16. Which amendment abolished slavery?
Explanation: 1865 (post-Civil War). “Neither slavery nor involuntary servitude… except punishment crime.”
#17. Which war ended WWII (Pacific)?
Explanation: Hiroshima (Aug 6, 1945), Nagasaki (Aug 9). Japan surrendered Aug 15. 200K+ deaths.
#18. Declaration of Independence signed?
Explanation: July 4, 1776 (adopted). Thomas Jefferson main author. 13 colonies independent.
#19. Which amendment: freedom of speech/religion?
Explanation: Bill of Rights (1791). Congress shall make no law… religion/speech/press/assembly/petition.
#20. What is 15% of 200?
Explanation: 15/100 × 200 = 0.15 × 200 = 30. Decimals: move 2 places left.