Key Idea.
Section 1
Hypothesis Testing
A scientific hypothesis is a testable explanation. Students evaluate two claims: either cats are eating the parrots (Predation), or the parrots are starving (Resource Scarcity).
Determining the answer requires high-quality evidence. Not all evidence is equal; it must be relevant to the specific claim being tested.
Section 2
Assessing Evidence Quality
Strong scientific arguments rely on high-quality evidence. Anecdotal sightings are weak; systematic population data is strong.
Students engage in scientific reasoning, using the evidence to justify why one hypothesis explains the parrot's decline better than the other.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter
Expand to review the lesson summary and core properties.
Section 1
Hypothesis Testing
A scientific hypothesis is a testable explanation. Students evaluate two claims: either cats are eating the parrots (Predation), or the parrots are starving (Resource Scarcity).
Determining the answer requires high-quality evidence. Not all evidence is equal; it must be relevant to the specific claim being tested.
Section 2
Assessing Evidence Quality
Strong scientific arguments rely on high-quality evidence. Anecdotal sightings are weak; systematic population data is strong.
Students engage in scientific reasoning, using the evidence to justify why one hypothesis explains the parrot's decline better than the other.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter