ScienceGrade 2nd· Why Do We Sleep
Why Do We Sleep
Why Do We Sleep
Learning Objective
Students will learn about why we sleep.
Words to Know
- REM sleep
- The dream stage — eyes dart around under eyelids!
- REM sleep is when you dream.
- Melatonin
- A hormone that makes you sleepy!
- Screens make less melatonin.
- Circadian rhythm
- Your bodys internal clock!
- It tells you when to sleep.
- Growth hormone
- A chemical released during sleep for growing!
- You grow most while sleeping!
Check What You Learned
Quick Quiz
1 / 3What does “REM sleep” mean?
Lesson Info
Grade 2nd
2026-07-20
Why Do We Sleep
Standards Alignment
- 4-LS1-2
Use a model to describe that animals receive different types of information through their senses, process the information in their brain, and respond to the information in different ways
- Health education
importance of sleep for growth and learning
Keywords
2nd grade sciencescience for kidssleeprem sleepmelatonincircadian rhythmgrowth hormone4-LS1-2Health educationkids learningelementary education
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