Grade 2 · Science · Lesson 19

Learn About Light Sources

Without light, we could not see anything at all. Light is a form of energy that travels outward from a source. Every light source falls into one of two groups — natural (made by nature) or artificial (made by people).

What this lesson teaches

1Sort light sources into natural and artificial groups
2Explain that light travels in straight lines
3Describe how shadows and reflection work

Free · 7 days · No credit card

Unlock the full HSEA system for 7 days.

Create a kid profile, open any lesson, save progress — your family uses HSEA exactly the way a paying family does. Cancel anytime. Nothing to set up, no card required.

✓ All 1,680 lessons, Grades 1–6, every subject
✓ Profiles + saved progress for every kid
✓ Final exams + printable certificates

Start your 7-day free trial →

Already convinced? See full membership plans →