About Earth Teasers

Earth Teasers is a set of short earth-science lessons for grades 1–3 and grades 4–6, with Poss Jonah and the Possum Holler gang. Do four lessons in a week, take a Friday test, earn stars, unlock a sticker and give your Pet Pal a treat.

How it works

• Monday through Thursday: one new short lesson a day (five little puzzles). Lessons you have already finished can be practiced any time.
• Friday: a weekly test that unlocks after all four lessons, covering that week’s ideas.
• Grades 1–3 have 8 weeks. Grades 4–6 have 9 weeks. A grown-up can switch levels on the home screen.
• Poss, Jeri Lynn, Aunt Verna Mae, Billy Joe Ray, Bobbi Ray and friends host the lessons. Aunt Verna Mae hosts the Friday test.
• There is no timer and no “game over.” A wrong answer just means try again.

Free, with no tracking

Earth Teasers is free. There is no account and nothing to buy. Progress stays on your own device. We don’t use ad networks or analytics. Between lessons we show a small note about our own books and apps; its links open only after a grown-up holds a button.

Earth Teasers is a practice app. It is loosely aligned with NGSS ideas, and it is not a substitute for schoolwork or for advice from a teacher.

Who makes it

Earth Teasers is made by Poss Jonah as part of Help-Pal, a family of simple, free apps.