Cambridge Y5 - Unit 3 - Properties of Gases.pptx

Properties of Gases

1. States of Matter : Gases Ms. Enas Ibrahim Habib Cambridge Primary Science – Year 5

2. Learning Objectives By the end of the lesson, students will be able to: Describe the properties of gases. Identify examples of gases in everyday life. Explain how gas particles move. Understand that gases take up space and have mass.

3. Starter Activity “Is there anything inside this balloon?” the balloon is filled with gas – air, which takes up space.

4. STATES OF MATTER No Fixed volume or shape Particles are far apart Move freely and quickly GAS Fixed volume & shape Particles are very close & can’t move easily Vibrate in place SOLID Fixed volume & Takes shape of container Particles are close but can move Slide past each other LIQUID

5. What Are Gases? Gases are invisible three state of matter. They do not have a fixed shape or volume. Gas particles are far apart and move quickly .

6. Particle Model

7. Particle Model

8. Particle Model of a Gas Gas particles are: Far apart Moving quickly in all directions Colliding with each other and the container walls

9. Properties of Gases Gases are invisible but real No fixed shape Air fills any container No fixed volume A balloon can grow or shrink Far apart, move freely Can be squeezed Air pump or syringe Shape Particles Volume Compressibility

10. Properties of solids the particles are packed very close together they cannot be compressed as there is a very small amount of empty space between particles they have a fixed shape as the particles are held very tightly together cannot diffuse as the particles are not able to move.

11. Properties of liquids the particles are packed quite close together cannot be compressed because there is very little empty space between particles they take up the shape of their container because the particles are free to move can diffuse because the particles are able to change places.

12. Properties of gases the particles are spaced far apart can be compressed because there is space between particles they have no fixed shape because the particles move about rapidly in all directions can diffuse because the particles are free to move in all directions

13. Examples of Gases Oxygen Carbon dioxide Helium Water vapour Air we breathe We exhale it Balloons In the air Gas Where It’s Found Needed for life Used by plants Makes them float Part of the water cycle Use

14. CHANGES OF WATER'S STATE SOLID LIQUID GASEOUS MELTING LIQUID CONDENSATION FREEZING EVAPORATION

15. THIS IS ITS EXERCISE Think and write in each box if water needs heating to change state or if it needs cooling. Write also the names of the water state changes, as appropriate. HOT MELTING

16. The particle model shows that all matter is made of tiny particles . In solids , the particles are very close together and cannot move , only vibrate. In liquids , the particles are close but can move around each other . In gases , the particles are far apart and move quickly in all directions . 👉 This model helps us understand why solids keep their shape, liquids flow, and gases spread out. We can compress a gas because its particles are far apart , so they can be pushed closer together. We cannot compress a solid because its particles are packed tightly , leaving no space between them to move closer. 1. What does the particle model show us about the structure of solids, liquids, and gases? 2. Explain why we can compress a gas, but we cannot compress a solid.

17. TABLE OF CONTENTS INTRODUCTION You can describe the topic of the section here MATERIALS You can describe the topic of the section here DISSOLUTION You can describe the topic of the section here ACTIVITIES You can describe the topic of the section here PROCESSES You can describe the topic of the section here CONCLUSION You can describe the topic of the section here 01 02 03 04 05 06

18. Mars is actually a very cold place It’s the farthest planet from the Sun Venus is the second planet from the Sun HOW TO STUDY CHEMISTRY? 30% 55% 15% MEMORIZE THEORY PRACTICE

19. WHAT ARE THESE OBJECTS MADE OF? METAL CRYSTAL WOOD CLOTH CERAMIC

20. COMBINATION OF MATERIALS METAL Mars is actually a very cold place CRYSTAL Venus is the second planet from the Sun WOOD It’s the farthest planet from the Sun

21. 3 6 2 5 Examples of Gases Oxygen Carbon dioxide Helium Water vapour 1-5 1 4 Gas

22. Mars is actually a very cold place Venus is the second planet from the Sun ROUGH SPARKLY CHARACTERISTICS OF THE MATERIALS OPAQUE It’s the closest planet to the Sun SOFT It’s the farthest planet from the Sun HEAVY Jupiter is the biggest planet of them all FLEXIBLE It’s composed of hydrogen and helium

23. REVERSIBLE PROCESSES BEFORE Venus has a beautiful name and is the second planet from the Sun AFTER Despite being red, Mars is actually a cold place. It’s full of iron oxide dust REVERSIBLE It’s the closest planet to the Sun and the smallest in the Solar System

24. IRREVERSIBLE PROCESSES BEFORE AFTER Venus has a beautiful name and is the second planet from the Sun. It’s hot and has a poisonous atmosphere Mercury is the closest planet to the Sun and the smallest one in the Solar System—it’s only a bit larger than the Moon

25. —SOMEONE FAMOUS “This is a quote, words full of wisdom that someone important said and can make the reader get inspired.”

26. REMEMBER CONCEPTS BEFORE AFTER Venus has a beautiful name and is the second planet from the Sun Despite being red, Mars is actually a cold place. It’s full of iron oxide dust

27. CHEMICAL PROCESSES 02. You can enter a subtitle here if you need it

28. OBJECTS CHARACTERISTICS MATERIAL DISSOLUTION FLEXIBLE RIGID SOFT - COATED - OPAQUE CLOTH NO YES NO HEAVY - COLD - SPARKLY METAL NO NO YES SPARKLY - LIGHTWEIGHT PLASTIC NO NO NO TABLE OF PROPERTIES

29. COUNTRY CHARACTERISTICS SATURN Saturn is a gas giant and has several rings JUPITER It’s the farthest planet from the Sun VENUS Venus is the second planet from the Sun MARS Mars is actually a very cold place

30. 150,000 Big numbers catch your audience’s attention

31. WATER PROCESSES INFOGRAPHICS Mars is actually a very cold place Venus is the second planet from the Sun ICE WATER STEAM It’s the closest planet to the Sun WATERPROOF Jupiter is the biggest planet of them all

32. 9h 55m 23s Is Jupiter's rotation period, the biggest planet of them all 333,000.000 Earths is the Sun’s mass, the star of our Solar System 386,000 km Is the distance between Earth and the Moon

33. A PICTURE ALWAYS REINFORCES THE CONCEPT Images reveal large amounts of data, so remember: use an image instead of a long text. Your audience will appreciate it

34. A PICTURE IS WORTH A THOUSAND WORDS

35. FAVORITE CHEMISTRY LESSONS Follow the link in the graph to modify its data and then paste the new one here. For more info, click here MARS Mars is actually a very cold place VENUS Venus is the second planet from the Sun JUPITER It’s the farthest planet from the Sun 27% 52% 21%

36. AWESOME WORDS

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40. OUR TEAM JENNA DOE You can talk a bit about this person here TIMMY JIMMY You can talk a bit about this person here SUSAN BONES You can talk a bit about this person here

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