Testable does not mean repeatable in a lab, argues the SC250 Unit 1 discussion post modeled here, using a starter jar, an extinct lineage and a pet ban. Searches like "sc 250 unit 1 assignment example", "sc250 unit 1 sample" and "sc250 unit 1 example" land here.
What a finished SC250 Unit 1 discussion board post looks like
About three hundred words in four paragraphs, then two replies. Paragraph one gives the three questions as the author met them: a jar of starter that seemed livelier in a warm spot, a documentary on the Cretaceous extinction, and a notice from the building manager. The second states the observation that would settle the starter question: the rise in two tape-marked jars, one on the refrigerator and one on the counter, after [six] hours. Paragraph three is the post's center. Nobody can rerun the extinction, yet the impact hypothesis predicted that the iridium-rich clay first found in Italy would appear at the same boundary worldwide, and that a crater of matching age existed somewhere; both predictions could have failed. The fourth sets the pet ban aside as a question of fairness.
How a SC250 Unit 1 example is structured
Sorting rather than defining drives the post, so its argument appears as a ranking of three cases. Its dividing line is stated once, in the second sentence: a question is scientific when some possible observation would count against a proposed answer. The starter question passes easily and is used briefly. The asteroid question does the real work, because it breaks the common assumption that science needs a repeatable experiment; the post shows that a hypothesis about a single past event can still stake itself on evidence not yet found, and it cites the course text for the 1980 proposal and the crater's identification in 1991. The pet ban is handled in two sentences, noting that a survey could count complaints but could not decide fairness. Replies test the dividing line on classmates' examples, including one about dreams predicting events.
One dividing line, stated early
A single test, whether any possible observation could count against an answer, is applied to every example in place of a list of definitions.
A kitchen question kept short
The starter jars pass in two sentences, with the measurement named, because the easy case only needs to establish the line before the hard one arrives.
Predictions about a past event
The impact hypothesis staked itself on a worldwide clay layer and a crater of matching age, so a single unrepeatable event still produced claims that could fail.
Where counting stops helping
A survey of residents could tally complaints about the pet ban, and the post says plainly that no tally settles whether the rule is fair.
Replies that test the line
Replies hold a classmate's example to the same line, asking what observation could undercut it, which extends the argument rather than praising the post.
Where marks go in SC250 Unit 1
Posts that define science as experiments in a laboratory run into trouble on this prompt, because the historical sciences then fall outside it, and instructors often probe that gap in their replies. Treating every question with a number in it as scientific misses the prompt's other edge: a fairness judgment does not become measurable because complaints can be counted. Vague dividing lines, science is about facts and the rest is opinion, earn little analysis credit. Examples all drawn from one kind, three kitchen experiments, cannot show the distinction working. Historical claims stated without a source or date, the impact hypothesis with no year attached, draw citation notes. Replies that simply agree, and a post that runs well beyond the stated length, give up participation points that were easy to keep.
Get a SC250 Unit 1 example written to your instructions
Along with the SC250 Unit 1 prompt and rubric, list any questions from your own days you would like sorted, even odd ones. The free first custom post, back in 24-48h and written to that prompt, draws a single dividing line and tests it on each question, with replies drafted for any classmates' posts pasted in.
SC250 Unit 1 questions, answered
Is a question unscientific if it cannot be tested yet?
Not necessarily. Some questions are scientific in principle but wait on instruments or data, such as claims about distant planets before telescopes could check them. The useful distinction is whether any observation, even a future one, could count against an answer. A question that no evidence could ever touch is the kind that sits outside science altogether.
Can history or geology be science if nothing can be repeated?
Yes. Those fields test hypotheses by predicting evidence not yet examined, a rock layer, a fossil sequence, a crater, and then looking for it. The event cannot be rerun, but the prediction can fail. Many SC250 posts earn their strongest marks by showing that difference between a repeatable experiment and a testable claim, often with one well-chosen example.
How many examples should my post include?
Where the prompt sets a number, that number governs. Where it does not, two or three well-chosen examples of different kinds usually do more than a long list, because each one needs a sentence showing why it lands where it does. Examples from your own life, kept free of private detail, tend to read as more thoughtful than textbook ones.