Year 8 Science · Unit 2 · Lesson 05

Matter, Bringing It Together

Foundation Worksheet

Name

Date

Class

Learning Goals

Recall the key ideas from Lessons 1–4: matter, atoms, elements, compounds, mixtures, symbols, particle diagrams and models.
Connect these ideas to show how the classification of matter depends on atomic arrangement.
Use the four tools (classify, symbol, particle diagram, model) together to describe real substances.

Warm Up

Fill the gap

Choose the correct word from the word bank to complete the passage. Each word is used once. Two words in the bank are not needed.

atoms element compound mixture model symbol particle formula nucleus

All matter is made of tiny that are too small to see with the naked eye. When a substance contains only one type of atom, we call it an . When two or more different elements are chemically bonded together, the result is a . If substances are simply mixed together without any chemical bonding, we have a . Scientists use a such as Fe or O, to represent each element in a short, universal way. A diagram shows how atoms are arranged inside a substance so we can see its structure without needing a microscope. When scientists draw a simplified picture to explain something they cannot directly observe, they are using a scientific .

Your Turn

Sort it!

Write each item from the pool below into the correct category box. Each item belongs in exactly one box.

element compound mixture particle diagram Fe H₂O proton atom Bohr model physical model NaCl nucleus

Classification

Atomic structure

Symbols

Models

Show What You Know

1. A student holds up a piece of copper wire. Using ideas from Lessons 1–4, identify its classification, write its chemical symbol, and describe what its particle diagram would look like.

Recall 3 marks

2. Explain the difference between a compound and a mixture. Use NaCl (table salt) and granite (a mix of minerals) as examples in your answer.

Recall 2 marks

Wrap Up

Write the most important connection you've made between ideas in this unit so far.