Year 7 Science · Unit 2 · Lesson 13

Unit 2 Synthesis

Foundation Worksheet

Name

Date

Class

Learning Goals

Recall key vocabulary from across Unit 2: particles, elements, compounds, mixtures, solutions and separation.
Sort Unit 2 concepts into their correct theme groupings.
Connect ideas across the full unit to build a complete picture of matter and mixtures.

Warm Up

Fill the gap

Choose the correct word from the word bank to complete each sentence. Two words will not be used.

particles compound mixture solution saturated solute evaporation solvent element dilute

All matter is made of tiny . A pure substance made of only one type of atom is called an , while a pure substance made of two or more types of atom chemically bonded together is a . When substances are just physically combined, the result is a . When sugar dissolves evenly in water, the dissolving sugar is the and the result is a . If no more sugar will dissolve at that temperature, the solution is . To get a dissolved salt back from salt water, you can use .

Your Turn

Sort it!

Write each concept from the pool into the correct theme box. Each concept belongs in exactly one box.

solid, liquid, gas particle model changes of state element compound homogeneous mixture filtration evaporation distillation solute & solvent saturated solution solubility vs temperature

Matter & States

Pure Substances vs Mixtures

Separation Techniques

Solutions & Solubility

Show What You Know

1. Explain the difference between a solute, a solvent and a solution. Give an example of each from making a cup of sweet tea.

Recall 2 marks

2. A student has a beaker containing sand, salt and water all mixed together. Name a suitable technique to (a) remove the sand, and (b) recover pure salt from what is left. Briefly say why each technique works.

Recall 2 marks

Wrap Up

Write three key ideas from Unit 2 that you want to remember.