2. MATTER is anything that has mass and takes up space

3. CHEMISTRY is the study of matter and the changes it undergoes

4. The Particle Theory of Matter Describes the composition and behaviour of matter There are 5 main postulates:

5. The Particle Theory of Matter 1.All matter is made up of tiny particles

6. The Particle Theory of Matter 2. Different substances are made up of different kinds of particles

7. The Particle Theory of Matter 3. Spaces between particles are large compared to the size of the particles themselves

8. The Particle Theory of Matter 4. Particles are always moving; they move faster as temperature increases

9. The Particle Theory of Matter 5. Particles attract each other

12. CLASSIFYING MATTER Matter can be classified by…. solidliquidgas state …its state.

13. CLASSIFYING MATTER Matter can be classified by…. state …its state. color …its color.

14. CLASSIFYING MATTER Matter can be classified by…. state …its state. color …its color. uses …its uses.

15. CLASSIFYING MATTER Matter can be classified by…. state …its state. color …its color. uses …its uses. other properties …and any of its other properties. BUTwe will be classifying matter according to its ___________ and __________ of ________. compositiondistributionparticles

16. CLASSIFYING MATTER matter Has mass and volume and volume. pure substancemixture Made up of only one type of particle. element compound

17. element Made up of all the same particles called atoms. Au gold Au Most elements are made of all the same individual atoms. Ni Ni nickel

18. O 2 oxygen gas HH element Made up of all the same particles called _______. H 2 hydrogen gas Au gold Au OO OO HH Most elements are made of all the same individual atoms. SEVEN elements have two of the same atoms bonded together. These are called diatomic molecules. Ni Ni nickel H 2 O 2 Br 2 F 2 I 2 N 2 Cl 2 hydrogen oxygen bromine fluorine iodine nitrogen chlorine HH OOatoms

19. element Elements are listed on the periodic table platinum iodine chlorine mercury manganese sodium

20. Made of the same particles (called atoms). CLASSIFYING MATTER matter Has mass and volume. pure substancemixture Made of only one type of particle. element compound

21. Made up of all the same particles called molecules. Each molecule is made of two or more different atoms combined in fixed proportions. compound HH O H 2 O water H 2 O 2 hydrogen peroxide H 2 O 2 hydrogen peroxide O C O O C O O C O HH O HH O HH OO HH OO HH OO COCO CO CO 2 carbon dioxide CO carbon monoxide

22. compound C 6 H 12 O 6 glucose CH 4 methane C 6 H 6 benzene C 3 H 8 propane N H H H NH 3 ammonia Examples of common compounds.

23. Made of the same particles (called atoms). CLASSIFYING MATTER matter Has mass and volume. pure substancemixture Only 1 type of particle. elementcompound Made of the same molecules (2 or more different atoms combined). Made of 2+ different particles/ substances mixed together. heterogeneous mixture homogeneous mixture

24. homogeneous mixture heterogeneous mixture Made up of different particles that are ___________________. Made up of different particles which are ______________________. OR uniformly distributed NOT uniformly distributed

25. homogeneous mixture Made up of different particles that are ___________________. uniformly distributed The different particles are so small that they evenly mix with one another.

26. homogeneous mixture wine alloys: homogeneous mixtures of metals bronze: copper, tin stainless steel: iron, carbon, chromium brass: copper, zinc tea salt water 18K gold: gold, silver, copper Also called a solution. air: a mixture of gases (N 2 and O 2 mostly) Made up of different particles that are ___________________. uniformly distributed The different particles are so small that they evenly mix with one another.

27. heterogeneous mixture Made up of different particles which are _____________ ___________. OR NOT uniformly distributed The different particles are so large that do not evenly mix with one another, or they are chemically unable to mix with one another.

28. heterogeneous mixture Made up of different particles which are _____________ ___________. OR blood sand tomato juice tomato juice salad laundry NOT uniformly distributed salad dressing salad dressing

29. Made of the same particles (called atoms). CLASSIFYING MATTER matter Has mass and volume. pure substancemixture Only 1 type of particle. elementcompound Made of the same molecules (2 or more different atoms combined). Made of 2+ different particles/ substances mixed together. heterogeneous mixture homogeneous mixture Made of different particles NOT uniformly distributed. Made of different particles uniformly distributed. Eg. Solution, alloy mechanical mixture suspension

30. but will _________into _______ ______ over time. different phases mechanical mixture suspension The different types of particles ______________ The different particles __________ _____ Are these mechanical mixtures or suspensions? and ________ into ____________________. tomato juice mud paint blood laundry salad flour and water oil and vinegar sand appears homogeneous settle out distinctly visible phases separate don’t blend well blend fairly well and ___________________

31. mechanical mixture suspension Because particles in a suspension are small they will initially mix together, but since they are larger than those in a solution, they don’t stay evenly mixed over time. but will _________into _______ ______ over time. different phases The different types of particles ______________ The different particles __________ _____ and ________ into ____________________. appears homogeneous settle out distinctly visible phases separate don’t blend well blend fairly well and ___________________

32. CLASSIFYING MATTER matter Has mass and volume. pure substancemixture elementcompoundheterogeneous mixture homogeneous mixture Made of different particles NOT uniformly distributed. mechanical mixture suspension particles separate into distinctly visible ‘phases’. particles blend well, appear homogeneous but settle into phases over time. Made of the same molecules (2 or more different atoms combined). Made of the same particles (called atoms). Made of different particles uniformly distributed. Only 1 type of particle. Made of 2+ different particles/ substances mixed together.

34. Homework Read pages 175-178, complete questions 1-6 for homework. Study for ‘science skills’ quiz! – All material covered from March 18-March 25