Ages 7–9🔬 Science9 verified questions on this shelf

Classifying Ocean Animals

Classify ocean animals into major groups: fish (breathe through gills, have scales), marine mammals (breathe air, warm-blooded, feed milk), and invertebrates (no backbone — jellyfish, octopuses, crabs, starfish)

Try three questions

Tap an answer to check it. Every question and explanation was checked by independent verifiers that must agree.

Question 1 of 3

Which of the following groups lists two fish, two marine mammals, and two invertebrates correctly?

Question 2 of 3

Which list correctly places each animal in its group: fish (gills, scales), marine mammals (breathe air, have milk), or invertebrates (no backbone)?

Question 3 of 3

Which of these ocean animals is a marine mammal?

Keep going on this shelf

A free account keeps practising Classifying Ocean Animals with 9 verified questions, tracks the Skill as it blooms, and connects a real teacher when you want one. Every student account needs a parent's email first.

Skill names and descriptions include the Marble Skill Taxonomy © Generative Spark, Inc. (withmarble.com), licensed under ODbL 1.0 (database) and CC BY-SA 4.0 (content). Practice questions are GlowGrades's own, each checked by independent verifiers that must agree before a child ever sees it.