Worksheet titled "What Is a Hypothesis?" featuring a blackboard illustration and questions about scientific hypotheses.

Solution to "What Is a Hypothesis?"

We are asked to identify which statements describe a hypothesis in science. A hypothesis is a key component of the scientific method. Let's go through each statement and determine whether it accurately describes a hypothesis.

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#### ✔ Statements that DO describe a hypothesis (put an X next to these):

- A _A tentative explanation_
→ ✔ Yes. A hypothesis is a proposed explanation that hasn't been proven yet.

- B _A statement that can be tested_
→ ✔ Yes. A good hypothesis must be testable through observation or experimentation.

- C _An educated guess_
→ ✔ Yes. It’s not just a random guess — it's based on prior knowledge, observations, or research.

- E _A prediction about the outcome of an investigation_
→ ✔ Yes. A hypothesis often predicts what will happen under certain conditions.

- G _A statement that may lead to a prediction_
→ ✔ Yes. Hypotheses guide predictions that can be tested.

- K _May guide an investigation_
→ ✔ Yes. It helps shape the direction of an experiment.

- L _Used to decide what data to pay attention to and seek_
→ ✔ Yes. It focuses the research by identifying relevant variables and outcomes.

- N _Must be in the form of “if…then…”_
→ ✘ Not necessarily true. While many hypotheses are written in “if…then…” format for clarity, it’s not a strict requirement. So this is not always accurate.

Wait — let's reconsider: While "if...then..." is a common way to express a hypothesis, it is not required. For example, “Plants grow faster with more sunlight” is a valid hypothesis without using “if...then.” So:

→ ✘ N is NOT correct (do not mark X).

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#### ✘ Statements that DO NOT describe a hypothesis:

- D _An investigative question_
→ ✘ No. This is the question you start with, not the hypothesis. The hypothesis is the answer you propose.

- F _A question asked at the beginning of an investigation_
→ ✘ No. Again, this is the research question, not the hypothesis.

- H _Included as a part of all scientific investigations_
→ ✘ Not always. Some investigations may not use formal hypotheses (e.g., exploratory studies). So this is too absolute.

- I _Used to prove whether something is true_
→ ✘ No. A hypothesis cannot be "proven true" — it can only be supported or refuted by evidence. Science avoids definitive proof.

- J _Eventually becomes a theory, then a law_
→ ✘ No. A hypothesis doesn’t become a theory or law directly. A well-supported hypothesis may lead to a theory, but theories and laws are broader and different concepts.

- M _Developed from imagination and creativity_
→ ✘ Partially misleading. While creativity plays a role, a hypothesis must also be grounded in evidence and logic. Saying it's *developed from imagination and creativity* alone is inaccurate — it’s not purely imagination.

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✔ Final Answer: Mark X next to:

- A – A tentative explanation
- B – A statement that can be tested
- C – An educated guess
- E – A prediction about the outcome of an investigation
- G – A statement that may lead to a prediction
- K – May guide an investigation
- L – Used to decide what data to pay attention to and seek

> ⚠️ Do not mark: D, F, H, I, J, M, N

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📝 Description: What Is a Hypothesis?

My Definition:
A hypothesis is a testable and falsifiable explanation for a phenomenon, based on observation and prior knowledge. It is a logical prediction about how variables might interact in an experiment.

How I Learned It:
I learned that a hypothesis is not just a guess — it’s a smart, informed idea that scientists use to guide their experiments. In science class, we were taught that a good hypothesis must be specific enough to be tested and should predict an outcome. For example, if we want to know whether plant growth depends on light, our hypothesis might be: *"Plants exposed to more sunlight will grow taller than those in shade."* We then design an experiment to test it. If the results don’t support it, we revise or reject the hypothesis. That’s how science builds knowledge step by step.

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✔ Summary of Correct Answers:
- X A
- X B
- X C
- X E
- X G
- X K
- X L

All others remain blank.

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