Books for kids who ask why, and what to do when the questions keep coming

If your child has asked “why?” six times before breakfast, neither of you is doing anything wrong. Here’s what researchers have found about children’s questions, what to try when you run out of answers or patience, and some real books that can help.

Sources are linked in the text. Last checked November 2026.

What the research says

Young children ask a lot. Michelle Chouinard’s 2007 monograph analyzed recordings of four preschool-age children, and later researchers report that their questions seeking information came at an average of 76 an hour. Four children can’t speak for all children, so take that as a sense of scale.

The monograph also suggests they aren’t only asking to get a reaction. When children didn’t get an informative response, they kept asking, or as the summary puts it, “attention is not enough.”

A 2009 study by Brandy Frazier, Susan Gelman and Henry Wellman looked at what children aged 2 to 5 did next. After an explanation, they more often agreed or asked a follow-up. After a reply that didn’t explain, they more often asked again or offered an explanation of their own. So a repeated “why?” may mean the first answer didn’t answer what they were asking.

Almost all of this work is about preschoolers. We found much less on children of 6 to 10, and none of it shows that answering every question will make a child smarter.

What to do when your child keeps asking why

1. Give a short, real reason. It doesn’t have to be science. In the 2009 paper, a child asked why an adult was making tacos, and “I thought you’d like them” counted as an explanation. One honest sentence is often enough to move things along.
2. Ask what they think, when you know the answer. In a 2018 study of 180 children aged 4 to 6, a question from a knowledgeable teacher got the information across and also led to more exploring afterward. The same question from someone who didn’t know the answer didn’t have that effect. So asking back seems to work as teaching rather than as a way to dodge.
3. Say “I don’t know” and find out. This one is common sense rather than a research finding. Write the question on a list on the fridge, and look it up together at dinner or at the library. You’ll also find out which questions they still care about the next day.
4. Go and look at the real thing. In the zoo study in Chouinard’s monograph, 112 parents and children aged 2 to 4 looked at real animals, drawings or replicas. Children were less likely to ask deep questions about the drawings and replicas. So crack the egg, watch the ants, and take the old clock apart with them.
5. Give yourself a stopping point. Nothing here says you must answer every question on the spot. “That’s a good one. I can’t think about it while I’m driving. Ask me at dinner.” Then listen for it at dinner.

Stories about children who ask

• Why?Lindsay Camp, illustrated by Tony Ross, 1998Lily asks “why?” so often that her dad loses patience, until the habit comes in very useful when aliens turn up in the park.
• Ada Twist, ScientistAndrea Beaty, illustrated by David Roberts, 2016A rhyming picture book about a girl whose head is full of questions. The publisher’s listing gives ages 5 to 7.

Books that answer the questions

• Little Kids First Big Book of WhyAmy Shields, National Geographic Kids, 2011Short questions and answers with lots of photographs, listed for ages 4 to 8.
• Big Questions from Little PeopleEdited by Gemma Elwin Harris, 2012Schoolchildren’s questions answered by experts and well-known writers, including David Attenborough and Mary Roach. It’s a good one to read together.
• Why Is Snot Green?Glenn Murphy, 2007A question-and-answer book written while the author worked at the Science Museum in London. A bookseller listing for a later edition gives ages 9 to 11.
• The Way Things WorkDavid Macaulay with Neil ArdleyA big illustrated guide to how machines work, for the child who wants to know how things work more than why. It’s listed for ages 9 and up.

Gifts for curious kids that aren’t books

• A good magnifying glass, and an invitation to a walk with you.
• A notebook labeled “Questions,” with the first one written in your handwriting.
• A bird feeder and a small field guide for your part of the world.
• An old wind-up clock to take apart with a grown-up nearby.

More guides: long distance grandparent gifts and the Christmas Eve book tradition.