| 1,064 |
| Iron | 1,538 |
Iron
Gold
Lead
10. Describe the bacteria population trend shown below:
Time (Hours) Population
Exponential Increase
Steady Decrease
No Change in Population
11. Which city has the highest average annual rainfall?
City ACity BCity CCity D
Rainfall (Inches)
City B
City D
City A
12. Identify the correlation between study and score:
Study Hours Test Score
Positive Correlation
Negative Correlation
No Correlation
PART 3
13. Which bird species had exactly 21 sightings?
| Species | Count |
|---|---|
| Robin | 12 |
| Sparrow | 21 |
Sparrow
Robin
14. If an object's distance remains at 0 meters while time increases, the object is:
At Rest
Accelerating
Moving at constant speed
15. Which scientific tool is designed specifically for measuring mass?
Triple-beam balance
Graduated cylinder
Meter stick
16. An investigation is scientifically flawed if it changes ________ variables at once.
Multiple
Only one
Zero
17. Calculate the average growth rate: A population of wolves grew by 40 over 5 years. Show your calculation steps below.
Final Result: ________ wolves per year
18. A solar panel produces 500 Watts in 2 hours. What is its average hourly production? Show your work.
19. If Group A's mean is 15 and Group B's mean is 25, find the difference between them. Show your work.
PART 4
20. Construct a full CER (Claim, Evidence, Reasoning) response for the question: Does adding salt affect the boiling point of water?
Claim:
Evidence & Reasoning:
21. Which statement represents a scientific claim rather than a personal opinion?
Rocks form from cooled molten magma.
The moon is the most beautiful object in space.
Experiments are more fun than lectures.
22. Explain how our perspective from Earth causes Moon phases (use diagrams or words):
23. In science, what is the fundamental difference between a Law and a Theory? Provide a definition for each.
24. How should the scientific community resolve two conflicting claims about a new discovery?
Gather and compare new, peer-reviewed evidence.
Hold a vote among all living scientists.
Assume both claims are partially correct.
25. Which is the strongest evidence to support the claim that "birds evolved from dinosaurs"?
Shared fossil traits like feathers and wishbones.
Modern birds and dinosaurs are both vertebrates.
Many scientists enjoy studying both groups.
26. "A study funded by a global battery company says lithium mining has zero impact on local water." Why should a student be skeptical of this report?
27. Which source is typically considered the most reliable for professional scientific research?
A peer-reviewed scientific journal article.
A viral social media post from a news agency.
A personal blog from a science enthusiast.
28. Define "Scientific Bias" in your own words. Why is it dangerous for science?
21. Answer: Option 1 (Magma)
Rationale: This is a factual claim based on geology; others are subjective preferences.
22. Sample Answer
Earth's view of the sunlit half of the moon changes as the moon completes its orbit.
23. Sample Answer
Laws describe patterns (often with math). Theories provide explanations for why those patterns exist.
24. Answer: Peer-reviewed evidence
Rationale: Scientific consensus is reached through independent verification of data.
25. Answer: Shared fossil traits
Rationale: Physical traits like feathers and wishbones link birds directly to theropod dinosaurs.
26. Sample Answer
Potential conflict of interest: the company stands to profit from showing their project is harmless.
27. Answer: Peer-reviewed journal
Rationale: These undergo the most rigorous scrutiny by independent experts before publication.
28. Sample Answer
Bias is an unfair prejudice for or against something, leading to distorted data or interpretations.
