Planet Patrol Pretest Worksheet
Diagnostic Check Solar System Science
SCORE: ____ / 14
Planet Patrol Pre-Test
Show what you already know about our solar system before we begin!
Name:
Date:
Class:
A
Questions 1–8: Planetary Orbit Order
8 Points (1 pt each)
Write the eight planets in order starting closest to the Sun (Question 1) to farthest away (Question 8).
Word Bank:
Earth Jupiter Mars Mercury Neptune Saturn Uranus Venus
Closest
2nd
3rd
4th
5th
6th
7th
Farthest
B
Questions 9–14: Planetary Facts
6 Points (1 pt each)
Circle the letter of the correct answer for each question.
9. Which planet is called the "Red Planet" due to iron oxide rust on its surface?
A Venus
B Mars
C Jupiter
D Mercury
10. Which planet is the largest planet in our entire solar system?
A Saturn
B Neptune
C Jupiter
D Earth
11. Which planet is famous for having bright, spectacular rings made of ice and rock?
A Saturn
B Earth
C Mars
D Neptune
12. Which planet is situated closest to the Sun?
A Venus
B Mercury
C Mars
D Earth
13. Which planet is the hottest due to a thick, heat-trapping atmosphere?
A Mercury
B Venus
C Mars
D Jupiter
14. Which planet is the cold, deep blue ice giant that orbits farthest from the Sun?
A Uranus
B Neptune
C Saturn
D Mars
Pre-Test Tip: Do your best! This check shows what you know before our space voyage begins. SOLAR SYSTEM 101
Planet Patrol Answer Key
Teacher Reference Guide Diagnostic Assessment Key
TOTAL POINTS: 14
Planet Patrol Answer Key
Scoring solutions, pedagogical insights, and common student misconceptions.
Rubric: 12–14: Advanced | 9–11: On Track | ≤ 8: Needs Review
A
Questions 1–8: Planetary Orbit Order (8 Points)
1 pt each
Accept exact names. Minor spelling errors should still be awarded full credit on a diagnostic pre-test.
Mercury Terrestrial / Closest
Venus Terrestrial / 2nd
Earth Terrestrial / 3rd
Mars Terrestrial / 4th
Jupiter Gas Giant / 5th
Saturn Gas Giant / 6th
Uranus Ice Giant / 7th
Neptune Ice Giant / 8th
Helpful Mnemonic: My Very Eager Mother Just Served Us Noodles (or Nachos)
B
Questions 9–14: Planetary Facts Solutions (6 Points)
1 pt each
Standard answers with key conceptual rationales for instructional follow-up.
Question 9 Answer: B (Mars)
Key Concept: Mars appears reddish-orange because its soil is rich in iron oxide (rust).
Question 10 Answer: C (Jupiter)
Key Concept: Jupiter is more than twice as massive as all other planets combined.
Question 11 Answer: A (Saturn)
Key Concept: While all gas giants have faint rings, Saturn's bright rings are visible from Earth.
Question 12 Answer: B (Mercury)
Key Concept: Mercury is closest to the Sun (averages 36 million miles) and orbits in just 88 days.
Question 13 Answer: B (Venus)
Key Concept: Venus has a 96% CO2 atmosphere that traps solar heat up to ~900°F (475°C).
Question 14 Answer: B (Neptune)
Key Concept: Neptune is the 8th and most distant planet, composed of methane, water, and ammonia ice.
Common Misconceptions to Target During Instruction:
1. Mercury vs. Venus Heat Many students assume Mercury is the hottest because it's closest. Clarify that Venus's greenhouse atmosphere traps far more heat.
2. Pluto's Classification Students may include Pluto as planet #9. Remind them the IAU reclassified Pluto as a dwarf planet in 2006.
3. Ring Systems Students often believe only Saturn has rings. Highlight that Jupiter, Uranus, and Neptune also have faint rings.
Teacher Note: Use pre-test error patterns to differentiate the upcoming KWL inquiry activity! TEACHER KEY • GRADE 4-8
Planetary Mission KWL Worksheet
Mission Log • Inquiry Chart Solar System Exploration
EXPLORER FLIGHT LOG
Planetary Mission K-W-L
Track your knowledge before, during, and after our voyage through the solar system!
Cadet Name:
Date:
Flight/Class:
SUN
••• Mercury • Venus • Earth • Mars •• [Asteroid Belt] •• Jupiter • Saturn • Uranus • Neptune •••
Deep Space
K
What I KNOW
What facts, planet names, or space ideas do you already know?
My Starting Confidence:
Cadet
1 2 3 4 5
Expert
W
What I WONDER
What mysteries or questions do you want to explore about space?
Doodle
#1 Planet to Visit:
Sketch it in the circle!
L
What I LEARNED
(During & after lesson) What new facts or big surprises did you discover?
Biggest Surprise Discovery:
Explorer Tip: Keep this chart active! Return to your W column during our planet mission to see which of your questions get answered!
Mission Completed
