The "Science Focus 3 homework book answers" search is a symptom of a larger issue: time pressure and fear of getting it wrong. But science is not about being right immediately—it is about experimenting, failing, and adjusting.

If your curriculum is through Cambridge rather than Pearson, the Cambridge Teacher's Resource provides answers for Topic 1 (Living Things), Topic 2 (Mixing Materials), and Topic 5 (Forces). Sample Answers (Geology & Biology Focus)