ILEARN Applied Learning 2 — Questions and Answers
Question 1: A student is designing an experiment to test which type of soil retains water best. After collecting data, the student notices the results for sandy soil were inconsistent. What is the BEST next step?
- Record the inconsistent results and move on
- Repeat the sandy soil trials to verify the data (Correct answer)
- Remove the sandy soil data from the report
- Change the hypothesis to match the results
Correct answer: Repeat the sandy soil trials to verify the data
Repeating inconsistent trials is the scientific way to determine whether the results were due to error or natural variation.
Question 2: A student reads two articles about electric cars—one written by an automaker and one by an environmental research group. Which question is MOST important when evaluating these sources?
- Which article is longer?
- Which article uses bigger words?
- What is each author's purpose and potential bias? (Correct answer)
- Which article was published first?
Correct answer: What is each author's purpose and potential bias?
Evaluating an author's purpose and potential bias helps determine the reliability and objectivity of information.
Question 3: A team of students must build the tallest freestanding tower using only index cards and tape. Before building, what should the team do FIRST?
- Start building immediately to save time
- Plan and sketch several possible designs (Correct answer)
- Argue about whose idea is best
- Buy additional materials
Correct answer: Plan and sketch several possible designs
Planning and sketching designs before building allows the team to evaluate options and choose the most effective approach.
Question 4: A student charts the daily high temperatures for two weeks and notices a clear downward trend. What conclusion is BEST supported by this data?
- It will snow tomorrow
- Temperatures have been decreasing over the observed period (Correct answer)
- The thermometer is broken
- Summer is ending permanently
Correct answer: Temperatures have been decreasing over the observed period
A downward trend in a data set means the measured values have been decreasing over the recorded time period.
Question 5: When using the engineering design process, what is the purpose of the 'prototype' step?
- To write a final report
- To build a testable model of the proposed solution (Correct answer)
- To identify the problem
- To research what others have already done
Correct answer: To build a testable model of the proposed solution
A prototype is a working model that allows designers to test their solution and identify improvements before finalizing it.
Question 6: A student wants to convince classmates to reduce plastic use. Which type of evidence would be MOST persuasive in a presentation?
- A personal story about disliking plastic bottles
- Statistics showing the amount of plastic in ocean ecosystems (Correct answer)
- An opinion from a classmate
- A list of plastic products the student owns
Correct answer: Statistics showing the amount of plastic in ocean ecosystems
Data-backed statistics provide objective, measurable evidence that is more persuasive than personal opinions or anecdotes.
Question 7: During a group project, one student keeps interrupting others. What is the BEST way for the group to handle this?
- Ignore the student and continue
- Ask the student to leave the group
- Establish a turn-taking rule so everyone gets equal time to speak (Correct answer)
- Let that student lead everything
Correct answer: Establish a turn-taking rule so everyone gets equal time to speak
Establishing a structured speaking order ensures every group member can contribute effectively and respectfully.
ILEARN Applied Learning 2
A student is designing an experiment to test which type of soil retains water best.
After collecting data, the student notices the results for sandy soil were inconsistent.
What is the BEST next step?