Standard Science Primary 5 Cycles

Rey placed two setups, A and B, in an open field under the sun. After 4 hours, he measured the amount of water left. Which setup will have less water left and why?

A Setup B, because it has a larger exposed surface area.
B Setup B, because the wind blows stronger at Setup B.
C Setup A, because it absorbs more heat.
D Setup A, because it has a smaller exposed surface area.
Show Worked Solution

Worked Solution

Step 1: Evaporation occurs at the exposed surface of the water. Step 2: Setup B is a wider container, so it has a larger exposed surface area. Step 3: A larger exposed surface area increases the rate of evaporation, leaving less water behind.

Correct answer: Setup B, because it has a larger exposed surface area.

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free