Year 8 Science · Unit 1 · Lesson 1

Levels of Organisation in Living Things

Foundation Worksheet

Name

Date

Class

Learning Goals

List the four levels of organisation (cell, tissue, organ, organ system) in the correct order.
Give a real example at each level.
Identify whether statements about the levels are true or false and correct errors.

Warm Up

Order the steps

Number the levels of organisation from 1 (smallest / simplest) to 4 (largest / most complex). Then write one real example in the right-hand column.

Order (1–4)	Level	One real example
	Organ system
	Tissue
	Cell
	Organ

1. In your own words, explain why the order you wrote makes sense. Use the words made of and works together in your answer.

Recall 2 marks

Your Turn

True or False? Fix the false ones

Circle T or F for each statement. If the statement is false, rewrite it correctly on the line below.

A tissue is a group of similar cells working together to do a particular job.

Correct it:

An organ system is just a single large organ that does an important job.

Correct it:

Both plants and animals have cells, tissues and organs.

Correct it:

A cell is made of different organs working together.

Correct it:

Show What You Know

1. Name the organ that pumps blood around the body. Which level of organisation is it, cell, tissue, organ or organ system? Explain your choice.

Recall 2 marks

2. A leaf mesophyll cell contains chloroplasts and has a flat shape. State one level of organisation the leaf mesophyll cell belongs to, and explain why multicellular plants like eucalypts benefit from having many of these cells rather than just one.

Recall 2 marks

Wrap Up

In one sentence, what was the main idea of this lesson?