This Grade 4 hard sheet uses short scenarios to practice fair testing and iteration. Four multiple-choice questions ask students to predict what happens when one variable changes in towers, bridges, water filters, and marble runs. Five fill-ins reinforce vocabulary like variable, hypothesis, iteration, and data. The worksheet expects Grade 4 learners to read carefully, isolate one change, and pick the smartest next test based on what the scenario clearly shows.
Style:
Engineering Design Challenges
Part A: Multiple Choice
Circle the best answer for each question.
1. Mia's tower fell at 8 blocks. She widens the base. What likely happens next test?
A) The tower stands taller before falling.
B) The tower falls at exactly 8 blocks again.
C) The tower tips over at fewer blocks.
D) The tower cannot stand at all anymore.
2. Leo's paper bridge held 4 coins. He folds the paper into a beam. What is the fairest test next?
A) Use a brand new shape and new coins.
B) Use the same coins and same span length.
C) Use heavier coins to challenge the bridge.
D) Use a different table and shorter span.
3. Ana's water filter is slow. She wants faster flow. Which change fits the goal?
A) Add more layers of fine sand on top.
B) Make the funnel opening much smaller.
C) Use slightly larger gravel near the bottom.
D) Pack every layer down very tightly.
4. Sam's marble run is too fast and misses the cup. Which improvement helps accuracy most?
A) Raise the start height much higher.
B) Remove every curve from the track.
C) Use a heavier and bigger marble instead.
D) Add a gentle curve before the cup.
Part B: Fill in the Blank
Write the correct answer on each line.
1. Changing one thing at a time keeps a test fair.
2. Repeating Ask, Imagine, Plan, Create, Improve is called iteration.
3. The thing being changed in a fair test is the variable.
4. Predicting the result before testing is called a hypothesis.
5. Test results that match a prediction give the team useful data.
Engineering Design Challenges
★ Part A: Multiple Choice
Circle the best answer for each question.
1. Mia's tower fell at 8 blocks. She widens the base. What likely happens next test?
A) The tower stands taller before falling.
B) The tower falls at exactly 8 blocks again.
C) The tower tips over at fewer blocks.
D) The tower cannot stand at all anymore.
2. Leo's paper bridge held 4 coins. He folds the paper into a beam. What is the fairest test next?
A) Use a brand new shape and new coins.
B) Use the same coins and same span length.
C) Use heavier coins to challenge the bridge.
D) Use a different table and shorter span.
3. Ana's water filter is slow. She wants faster flow. Which change fits the goal?
A) Add more layers of fine sand on top.
B) Make the funnel opening much smaller.
C) Use slightly larger gravel near the bottom.
D) Pack every layer down very tightly.
4. Sam's marble run is too fast and misses the cup. Which improvement helps accuracy most?
A) Raise the start height much higher.
B) Remove every curve from the track.
C) Use a heavier and bigger marble instead.
D) Add a gentle curve before the cup.
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) Changing one thing at a time keeps a test fair.
2) Repeating Ask, Imagine, Plan, Create, Improve is called iteration.
3) The thing being changed in a fair test is the variable.
4) Predicting the result before testing is called a hypothesis.
5) Test results that match a prediction give the team useful data.
Ready to Practice?
Complete each section carefully.
9 Questions
12-18 minutes
Auto-graded
Retry anytime
🏆
Questions Correct
0
Correct
0
Incorrect
0
Skipped
0:00
Time
0%
Score
Review Your Answers
See what you got right, missed, or skipped.