What grade is Rock Hound for?

2nd and 3rd grade. It’s a rocks and minerals game with 5 levels that move up when your kid is ready.

Which standards does Rock Hound cover?

It lines up with NGSS science 2-ESS1-1 and 3-LS4-1. Standards vary by state, so check with your kid’s teacher for the exact match.

Does my kid need to read to play Rock Hound?

No. Every question is read aloud, so kids who are still learning to read can play on their own.

How long is a round of Rock Hound?

About 10 questions, a few minutes. Nine right on the first try and the next round is a level harder; a tough round steps back one.

It comes with every plan, from $7.99 a month, with a 7-day free trial. Number Garden and Gator Compare are free.

Science · Earth and weather

Rock Hound: Rock types, the rock cycle, minerals, fossils and weathering

With a geologist's field kit, kids learn the three rock types and name common rocks. They follow the rock cycle, test minerals for hardness, and see how fossils form and how weathering wears rock down. A miss lights up the diagram that explains it.

Grades2nd grade, 3rd grade
Levels5, from “Three types” to “Fossils and weathering”
A roundAbout 10 questions, a few minutes
PriceWith any plan, from $7.99 a month

Try it free for 7 days See plans and prices

How Rock Hound works

Questions are read aloud, so kids who are still learning to read can play on their own.
A wrong answer shows why, with the picture or the steps, and then they try again.
Nine right on the first try and the next round is a level harder. A tough round steps back one.
Each game they play builds a spot in their own valley, and stars go in their sticker book.

The 5 levels

Three types
Name that rock
Rock cycle
Minerals
Fossils and weathering

What it lines up with in school

Next Generation Science Standards. Standards vary by state, so check with your kid’s teacher.

2-ESS1-1: Show that some changes to Earth happen quickly and some slowly.
3-LS4-1: Use fossils as evidence of living things and environments from long ago.

Practice it at home

Collect a few rocks and sort them by color, texture and whether they have layers or sparkles.
Look for weathering on old stone steps or gravestones, and talk about how slowly it happens.

Questions about Rock Hound

What grade is Rock Hound for?: 2nd and 3rd grade. It’s a rocks and minerals game with 5 levels that move up when your kid is ready.
Which standards does Rock Hound cover?: It lines up with NGSS science 2-ESS1-1 and 3-LS4-1. Standards vary by state, so check with your kid’s teacher for the exact match.
Does my kid need to read to play Rock Hound?: No. Every question is read aloud, so kids who are still learning to read can play on their own.
How long is a round of Rock Hound?: About 10 questions, a few minutes. Nine right on the first try and the next round is a level harder; a tough round steps back one.
Is Rock Hound free?: It comes with every plan, from $7.99 a month, with a 7-day free trial. Number Garden and Gator Compare are free.

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