Free Printable Pack

Hedgehog printable lesson pack

Free to print or save as PDF — no account needed. Go ad-free for $9.9 (one-time).

Object Page

SizeRef Pro Pack

Hedgehog

This Pro Pack offers structured, multi-age activities to teach English vocabulary, science, and critical thinking using the fascinating hedgehog.

SizeRef lesson draft

Learning Goals

  • Identify and name the animal 'hedgehog' in English.
  • Understand key facts about a hedgehog's defense mechanism.
  • Develop early literacy skills through tracing and sentence building.
  • Practice measurement and comparison using real-world dimensions.

Teacher / Parent Setup

Print out the included picture of a hedgehog. Gather crayons or pencils. Prepare a ruler or measuring tape for the science section.

Curiosity Focus

Why is the Hedgehog built this way?

This pack includes a reviewed diagram poster and a Kids Ask Why page that turns curiosity into a short explanation and mini activity.

Hedgehog
Width
25.0 cm
Height
13.0 cm
Depth
15.0 cm
Prepared by SizeRef Pro. Print or save as PDF from your browser.

Page 2

Vocabulary Builder

Little Learners: Meet the Hedgehog!

Hedgehog

Trace the word: hedgehog.

Look at the picture. What do you see on the hedgehog's back? Point to its nose.

Pretend to be a hedgehog! Roll into a tight ball when you hear 'danger!' and unroll when you hear 'safe!'

Hedgehog Heroes: Reading & Writing

A hedgehog is a small animal.

It has about 5,000 tiny spikes.

The spikes help keep it safe.

Write a sentence about what a hedgehog uses its spikes for.

Word bank: hedgehog · spikes · safe · small · ball · animal

Hedgehog Science: Defense Mechanisms

Hedgehogs possess an incredible natural defense system. When threatened by predators like foxes or badgers, special muscles under their skin contract. This action pulls their spiky coat taut and causes them to roll into a tight, impenetrable ball. The thousands of sharp spines, which are modified hairs, point outwards in all directions. This spiky shield makes them very difficult and painful for attackers to handle,...

Why do you think a hedgehog's defense mechanism is better than trying to run away from a predator?

Page 3

Size Science Lab

Read the size clue

A hedgehog is about 250 millimeters (25.0 cm) wide. Imagine a regular dinner plate; a hedgehog is about as wide as that. It stands 130 millimeters (13.0 cm) tall, which is close to the height of a soda can. Its depth is 150 millimeters (15.0 cm), roughly the length of a small paperback book. So, it's a small, compact animal, perfect for rolling up!

Width
25.0 cm
Height
13.0 cm
Depth
15.0 cm

Quick Check

How many millimeters wide is a hedgehog?

Estimate

Without measuring, find an object in the room that you think is about 13 cm tall. How close were you?

Is a hedgehog wider or taller? By how many centimeters?

Page 4

Scientific Diagram Poster

Diagram worksheet page

Plan a clear diagram for Hedgehog

Use this page to organize labels, parts, Kids Ask Why, context, and an answer legend before printing or teaching.

Review checklist

  • Clear English labels
  • No gibberish or fake logos
  • Accurate Kids Ask Why panel
  • Safe classroom-friendly image
  • Good print readability
Central subject
Parts and labels
Kids Ask Why
Life / mechanism
Habitat / context
Answer legend

Page 5

Kids Ask Why Lab

Big Question

Why is the Hedgehog built this way?

The Hedgehog has body parts and behaviors that help it move, find food, stay safe, and live in its habitat.

How to diagram it

Connect one body part to one survival job with arrows and short labels.

Cause-and-effect arrows

Part
Job
Why it helps

1-minute activity

Choose one visible body part and ask what job it might help the animal do.

I noticed:

My answer in one sentence:

Draw your own explanation

What I see
What it does
Why it matters

Page 6

Comprehension + Drawing

1. What is the name of this animal?

2. How many spikes does a hedgehog have?

3. What do the spikes help the hedgehog do?

4. What does a hedgehog do when it feels scared?

Draw and compare

Draw a hedgehog rolled into a ball. Next to it, draw something you think is about the same size as a hedgehog.

Drawing space

Page 7

Answer Key + Teaching Notes

Answer Key

  • Hedgehog.
  • About 5,000 spikes.
  • They help keep it safe.
  • It rolls into a spiky ball.
  • 250 millimeters or 25 centimeters.

Teaching Notes

  • Encourage learners to point to parts of the hedgehog in the picture as you discuss them.
  • For younger learners, focus on the words 'hedgehog', 'spikes', and 'safe'.
  • For older learners, discuss the concept of 'defense mechanism' and 'predator'.
  • Use real-world objects for size comparisons to make the dimensions tangible.
  • Emphasize the 'a' article before 'hedgehog' as it is a singular, countable noun.

Extension Activity

Research other animals that use spikes or quills for defense, like a porcupine, and compare their defenses to the hedgehog's.

Unlock the full Pro library

This pack provides ready-to-use, age-differentiated activities and science explanations, eliminating the need for extensive lesson planning.