How to raise a curious kid: nine habits backed by research

Four-year-olds ask dozens of questions an hour. By fifth grade, a lot of them barely ask any at school. Nine habits that keep the questions coming at home.

By Lionel Mora · October 14, 2026 · 5 min read

The short answer

Curiosity is one of the best predictors of how well kids learn. Curious brains remember more, and in a study of about 6,200 US children, curiosity predicted kindergarten reading and math, most of all for kids from lower-income families. Young children ask dozens of questions an hour at home and far fewer at school, and by fifth grade you rarely see curiosity in class at all. At home, you keep it going by answering with real information, then handing a question back, wondering out loud, following your kid's obsessions, leaving room for boredom, and saying "I don't know, let's find out" a lot.

When kids are curious, their brains remember more, even things that have nothing to do with the question.
Kids keep asking when the answers are real. Brush-offs teach them to stop.
"I don't know, let's find out" teaches curiosity better than knowing everything.
Boredom is not an emergency. A lot of curiosity starts there.
Curiosity lives in a gap: a question just past what your kid already knows.

Spend an afternoon with a 4-year-old and you'll hear "why?" more times than you can count. Spend a morning in a 5th grade classroom and you might not hear it once. Somewhere in between, a lot of kids learn that questions get in the way of the real work.

We started a company on the opposite bet. So this is what the research says about curiosity, and what you can do about it at home.

Why curiosity matters so much

Curiosity changes how the brain learns. In a 2014 study, people rated how curious they were about trivia questions, then waited a few seconds for each answer while an unrelated face appeared on screen. When they were curious, they remembered the answers better. They also remembered the faces better, and the faces had nothing to do with anything. Brain scans showed curiosity switching on reward and memory circuits¹. The lead researcher put it this way: curiosity may put the brain in a state where it can learn and keep any kind of information.

In kids, you see it at school. A study of about 6,200 US children found that curiosity, as reported by parents, predicted reading and math in kindergarten. The link was strongest for children from lower-income families². Curiosity might be one of the few advantages that doesn't depend on money.

Where the questions go

In a classic British study, 4-year-old girls asked around 26 questions an hour at home with their mothers. At nursery school, about 2 an hour³. The psychologist Susan Engel sat in American classrooms and counted. In a typical two-hour stretch of kindergarten, she saw two to five episodes of curiosity. In 5th grade it was usually zero to two, in a room of about 22 kids³.

The curiosity is still there. Kids just learn where it's welcome, and home can be one of those places.

Nine habits that keep kids curious

1. Answer questions properly, then hand them back

Kids keep asking when they get informative answers. When they don't, they push harder or ask the same thing again⁴. So give a real answer, short and at their level: "The moon doesn't follow the car. It's so far away it seems to stay still while the trees zip past." That tells them asking works. Then hand it back: "What else seems to follow us?"

2. Say "I don't know, let's find out"

One of the best sentences in parenting. It tells your kid that adults don't know everything either, and that there's always a way to find out: a book, an experiment, someone who knows, a walk over to look.

3. Wonder out loud

"I wonder why the leaves on this tree turn red before that one." Kids copy what they see. A parent who notices things and wonders about them, with no need for an answer, shows curiosity better than any lecture about it.

4. Follow their obsession

Dinosaurs, volcanoes, Minecraft, horses, trains. Whatever it is, it leads to everything else. A dinosaur kid can get into time, measurement, reading, evolution and museums. Psychologists describe curiosity as the pull of a gap between what you know and what you want to know⁶. With an obsession, that gap is already wide open.

5. Ask real questions, not quiz questions

"What color is that?" is a test. "What do you think is inside it?" is an invitation. Ask things you don't know the answer to, and take their answers seriously, including the strange ones.

6. Protect a little boredom

Not every gap in the day needs filling. In adult studies, people who did a boring task first came up with more creative ideas afterwards⁵, possibly because boredom sends the mind wandering. Leave a kid bored for twenty minutes and they'll often find something to build, take apart or wonder about. Autoplay takes that moment away.

7. Let them make a mess (and mistakes)

A lot of curiosity is physical: taking things apart, mixing things, seeing what happens. A kitchen experiment that fails teaches more than one that was set up to work. Leave out some materials, and leave some time.

8. Pitch things just past what they know

Curiosity peaks when something is surprising but still makes sense. Too easy is boring. Too hard is confusing. It's the same idea as the zone of proximal development: kids learn best just past what they can already do on their own.

At dinner, try "What did you wonder about today?" instead of "What did you learn?" And when they want to show you something they made or found, stop and look. Kids who are taken seriously keep going.

What about screens?

Some screens feed curiosity and some flatten it. A documentary that sparks fifty questions, a building game, a video call with a grandparent who knows about birds: good. An endless feed that answers a question before your kid has even asked it: not so good. More on this in how to make screen time educational.

Why we care

Curiosity is why Marble exists. Marble is an interactive learning world for kids aged 6 to 12, and we built it to keep kids curious, not just quiet. It follows what your child is into and turns their questions into quests just past what they already know. The characters are always up for the next "why?". After each session, you get a short note on what your child explored and one thing to ask them about that evening, so it carries on at dinner.

Questions parents ask

Why is curiosity important for learning?

It changes how the brain learns. In a 2014 study, people who were curious about a question remembered the answer better, and they also remembered unrelated information they saw while waiting for it. Brain scans showed activity in reward and memory circuits. In children, a study of about 6,200 US kids found curiosity predicted kindergarten reading and math, and the link was strongest for kids from lower-income families.

How many questions do children ask?

A lot. In a classic study, 4-year-old girls asked around 26 questions an hour at home with their mothers, and about 2 an hour at nursery school. Other analyses of young children's conversations found dozens of information-seeking questions an hour.

Why do kids stop being curious?

Most of them don't. They stop showing it in some places. A researcher who watched classrooms counted two to five episodes of curiosity in a typical two-hour stretch of kindergarten, and usually zero to two in fifth grade. Packed curricula, a focus on right answers and brushed-off questions all teach kids that asking gets in the way.

Is boredom good for kids?

Some boredom is. In adult studies, people who did a boring task first came up with more creative ideas afterwards, possibly because boredom lets the mind wander. A kid who's left bored for a while often finds something to wonder about or build.

How do I answer my child's endless why questions?

Give a real, short answer at their level, then hand it back: "What do you think?" or "How could we find out?" If you don't know, say so and look it up together. Research on children's questions shows they keep asking when the answers are informative, and push harder when they aren't.