Searching well and checking what you find
Computer Science · Key Stage 1 · The School
Better words, better results
Searching "dogs" gives everything. Searching "how much exercise does a border collie need each day" gives what you wanted. Use the specific words that would appear in a good answer — searching is a skill of guessing what the right page would say, not of asking a question politely.
Who wrote this, and why?
Before believing a page, ask three questions: WHO wrote it (a museum, a vet, an anonymous blog)? WHY does it exist (to inform, or to sell something)? WHEN was it written? A page selling dog food is not a neutral source on how much to feed a dog, however accurate it looks.
Ranked, not true
Search engines put results in order of what they predict is useful and popular — not in order of truth. The first result is not "the answer". Check two or three sources, and if they disagree, look for the one that shows where its information came from.
Question: how tall is the tallest tree? SEARCH A: "trees" — millions of results, none of them the answer. SEARCH B: "tallest tree" — better. SEARCH C: "tallest tree in the world height metres" — the words you want in the answer are in the question. Now check the top result: who wrote it, and does a second, unconnected site agree? If two independent sources say the same, you probably have it.