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Structures for Survival
Grade 4 - Science - Challenge Me
Worksheet 1
1Which function matches spines in a cactus?
2Which structure helps a fish with this function: take in oxygen from water?
3A student claims this structure helps a bean plant survive. Which evidence supports the claim about roots?
4Which question would test the function of bark?
5Which statement correctly links structure and function?
6Which function matches bark in an oak tree?
7Which structure helps a cactus with this function: protect the plant and reduce water loss?
8A student claims this structure helps a turtle survive. Which evidence supports the claim about shell?
9Which question would test the function of roots?
10Which statement correctly links structure and function?
About this worksheet
Structures for survival connect the parts of plants and animals with the functions those parts perform asks fourth graders to connect observations with an explanation, model, or design decision instead of choosing a fact from memory. Students may name a body part or plant part without explaining how it helps the organism survive, grow, behave, or reproduce. This worksheet uses short investigations and evidence-based situations so students must read what happened, decide which science idea is being tested, and choose the answer that fits the title. Students match structures to functions, use evidence from organisms, compare plausible structures, and explain why a structure supports survival. Support versions use familiar objects and direct wording. Standard and challenge versions add closer distractors, fair-test language, and multi-step evidence. Ask your child to point to the measurement, diagram, map, or observation before answering. If the choice does not explain the evidence in the prompt, it is probably a distractor. That habit keeps science reasoning tied to data rather than guesswork.
What your child will learn
Match structures with survival functions
Use evidence about plants and animals
Compare internal and external structures
Explain how structures support behavior or growth
Worked example
Roots help a bean plant absorb water and hold the plant in soil, so their function supports growth and survival.
Common mistake
Naming a structure without connecting it to what the structure does.
Helpful hint
Ask what job the structure performs for the organism.
Worksheet 1