When the Sea Changes is a free printable Grade 3 science worksheet on judging a solution when people change an ocean habitat, aligned to NGSS performance expectation 3-LS4-4. It prints 2 questions with an answer key on its own sheet of paper, in 25 versions, 19 of them with different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.
Set 10 of 25 · the same problems every time you open this link.
Set 1 has all 25 in a single PDF. 19 of these 25 sets ask different questions — this skill does not have 25 questions to give. The rest reorder them, so no two students have the same paper in front of them.
When the Sea Changes
3-LS4-4
NameDate
Write your answer. Use the checklist.
1.Oil from a damaged ship has washed onto a beach where seabirds nest. Judge one solution.
Name the solution
Say which living things it helps
Say one drawback
2.A coral reef is turning white because the sea around it has warmed. Judge one solution.
Name the solution
Say which living things it helps
Say what it cannot fix
LessonPrint · 3-LS4-4 · Set 10 · free to copy for classroom use
Answer key — When the Sea Changes
Set 10. Prints on its own sheet.
1.A solution such as cleaning the beach and the oiled seabirds, what it helps, and a drawback such as the time it takes or birds that cannot be saved.
2.A solution such as protecting the reef from other harm or growing new coral, the fish and coral it helps, and that it cannot cool the sea.
Last reviewed 2026-09-05. Aligned to 3-LS4-4 of the Next Generation Science Standards.