Free Grade 3 Science Course
Observe, sort, then explain. Each unit builds on the one before it.
- 2 units4 lessons26 written activitiesExplorer, Challenger, Champion
Unit 1: Matter and Plant Life
2 lessonsUnit 2: Food Chains, Light and Sound
2 lessonsWhat the Grade 3 Science course covers
Matter is introduced through water and weather, which a child already has a feel for. The plant life cycle is followed seed to plant, food chains connect living things to each other, and light, sound and energy close the course.
The Grade 3 Science course is two units, taken in order: Matter and Plant Life and Food Chains, Light and Sound.
The course runs to 4 numbered lessons and 26 written questions, around 20 minutes of teaching. Most families take it over a few weeks. Each attempt draws a different set of questions, so repeating a lesson is practice rather than recall of the answer order.
This is step 4 of 6 in Science. Nothing is locked, so if these lessons are easy the next grade is one tap away, and if they are hard the grade below is too.
How Science is taught here
Science is taught as observe, sort, then explain. Children first notice what something does, then group things that behave alike, and only then meet the word that names the rule. The explanation arrives last on purpose, because a definition learned before the observation is just a phrase.
How Science runs from playgroup to Grade 5 sets out the full sequence and where this course sits in it.
Levels and scoring
Each lesson plays at Explorer, Challenger or Champion. Only first-try answers count towards stars, so a retry never inflates a score, and a lesson is mastered at 90 percent at Challenger or above. See how a lesson works for the full explanation.
Questions parents ask
How long does the Grade 3 Science course take?
4 lessons and 26 questions, about 20 minutes of teaching. There is no streak to maintain and no deadline, so it can be done in one sitting or spread out.
What age is Grade 3 Science for?
Ages 7 to 8 is the guide, but go by what your child can already do rather than by age. Nothing is locked for a visitor, so trying the level above or below costs nothing and takes one tap.
Is Grade 3 Science free?
Yes, and without the usual catch. No account is needed, there is no advertising and there are no in-app purchases. It also works with no connection once the site is added to a home screen, or through the free Android app.
Are there experiments to do at home?
The lessons describe observations a child can make with ordinary household things, but nothing requires equipment, and nothing asks a child to handle anything hot, sharp or chemical.