Sleep Deprivation Vocabulary Challenge

How to play: Click a word on the left, then click its meaning on the right. You get feedback immediately.

Choose a word to begin.

🧠 Words & Phrases 20 left

💬 Meanings Find the match

🌙 Mission: What’s Happening to Alex?

The situation: Alex has decided to stay awake for as long as possible. Your team is the Sleep Investigation Squad. As Alex gets less and less sleep, strange things start happening.

Vocabulary bank:
sleep deprivation • survival • recharge • cranky • cortisol • sleepless • burst of energy • pleasant • animated • exhaustion • exhausted • extremely fatigued • metabolise • day-to-day function • set in • reaction time • nutrients • hallucinate • take a turn for the worse • physical functions

😠 Alex becomes irritated by tiny things and snaps at his friends.	__________	Alex is ______ because he is exhausted.
⚡ Suddenly, Alex feels surprisingly energetic and starts talking very quickly.	__________	Alex is experiencing…
🐌 Someone throws Alex a ball, but Alex responds much more slowly than usual.	__________	Alex’s ______ is slower than usual.
🥱 Alex can hardly keep their eyes open and has almost no energy.	__________	Alex is…
🍕 Alex’s body is no longer processing food as effectively as usual.	__________	Alex’s ability to ______ food has been affected.
🧠 Ordinary schoolwork and everyday tasks become increasingly difficult.	__________	Alex’s ______ is affected because he hasn’t had enough sleep.
👀 Alex thinks there is a cat walking across the classroom—but there isn’t one.	__________	Alex has begun to…
📉 Alex was doing badly before, but now the situation becomes much more serious.	__________	Things have…
🔋 After finally sleeping, Alex’s body and brain begin recovering their energy.	__________	Sleep allows Alex to…
😴 At first Alex feels okay, but after many hours, severe tiredness gradually begins.	__________	Exhaustion begins to…

Sleep Vocabulary Bank

🌙 Sleep Vocabulary Bank

Click a word when you use it. The card will turn yellow.

sleep deprivation

survival

recharge

cranky

cortisol

sleepless

burst of energy

pleasant

animated

exhaustion

exhausted

extremely fatigued

metabolise

day-to-day function

set in

reaction time

nutrients

hallucinate

take a turn for the worse

physical functions

0 of 20 words used

Complete the Paragraph

Complete the paragraph by choosing the correct connecting words from the box below. Use each connector once. Click a connector and then click the blank where you want to place it.

Connector Box

Sleep is vital for our brains and bodies, and sleep deprivation can have three serious effects: it can harm our memory, make day-to-day activities harder, and even change what we see and hear.

First, sleep helps us create long-term memories memories created during the day are consolidated during sleep. we may think our brain is resting when we sleep, it is actually doing important work.

Second, not getting enough sleep can affect our day-to-day function. An exhausted person may have a slower reaction time and find it difficult to concentrate. , someone who is extremely fatigued may make more mistakes at school or while doing simple tasks.

Finally, severe sleep deprivation can affect the way the brain understands the world. A person who has gone without sleep for a very long time may even hallucinate. , getting enough sleep gives our brain time to recharge and helps us think clearly.

, sleep is not simply a break from our daily activities; it is essential for our memory, our everyday performance, and a healthy brain.

To change an answer, click the blank again and choose another connector.

Part 1 — Find the Jobs

Match each part of the paragraph to its job. Choose the best description for each paragraph part.

Paragraph part

What does it do?

Thesis statement

Main idea 1

Supporting detail

Main idea 2

Main idea 3

Conclusion

Part 2 — Build the Paragraph

The ideas below have become mixed up. Number them from 1 to 8 to create a well-organized paragraph.

A person who goes without sleep for a very long time may even hallucinate.

Sleep deprivation can cause problems with memory, day-to-day function, and the way our brain understands the world.

Finally, severe sleep deprivation can affect what we see and hear.

In conclusion, getting enough sleep is vital for a healthy brain and body.

First, sleep deprivation can make it harder to create long-term memories.

An exhausted person may have a slower reaction time and find it difficult to concentrate.

Second, a lack of sleep can make day-to-day activities more difficult.

This is because memories created during the day are consolidated while we sleep.

Part 3 — Discover the Pattern 🔍

Write the correct letter next to each sentence from Part 2. Then complete the paragraph pattern at the bottom.

T = Thesis statement

M = Main idea

D = Supporting detail

C = Conclusion