1 / 26

Lesson 3 Classifying Matter

Lesson 3 Classifying Matter. Anything in black letters = write it in your notes (‘knowts’). Matter -. Anything that has mass and takes up space. Have any examples of matter?. Is anything NOT matter?. Which of these things is not considered matter?. Cell Phone Gravity Rainbow

jrobinson
Download Presentation

Lesson 3 Classifying Matter

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lesson 3 Classifying Matter Anything in black letters = write it in your notes (‘knowts’)

  2. Matter - Anything that has mass and takes up space. Have any examples of matter? Is anything NOT matter? Which of these things is not considered matter? Cell Phone Gravity Rainbow Fire Happiness Light Bulb Air Sound Empty Pop Bottle

  3. With your lab partner, write down how you could prove to someone that air has mass.

  4. Matter - Anything that has mass Mass - Measure of the amount of matter in an object Matter Mass We need a better definition for mass…

  5. Mass - Measure of an object’s inertia. Inertia - Resistance to change in motion. Which of the above has more inertia?

  6. Volume - amount of space occupied by an object Common units of volume: mL or L (liquids) cm3 or m3 (solids) 1 cm3 = 1 mL

  7. mass Density = volume UNITS mass  grams volume  mL or cm3 g/mL or g/cm3 density 

  8. The density of an object normally decreases as its temperature increases. Hot air rises!! The density of water is approx. 1 g/mL

  9. States of Matter Solid Particles are packed closely together; definite shape and volume

  10. Liquid Particles are close but are free to flow past one another; shape depends on container

  11. Gas Particles are far apart and move freely; shape and volume depend on container; can be compressed

  12. Physical Change A change in appearance but NOT in the chemical identity of a substance. • The melting point of gallium metal is 30˚C. The figure shows how the heat from a person’s hand can melt a sample of gallium.

  13. Phase Changes sublimate melt evaporate freeze condense deposit

  14. The difference between a vapor & a gas A vapor is a gas that evaporates from a liquid.

  15. The difference between evaporation & boiling Evaporation occurs only at the surface, boiling occurs throughout the liquid.

  16. The white cloud is NOT steam. It is actually hot water vapor condensing to form a mist of water droplets

  17. Element, Compound, or Mixture?

  18. Mixture - physical blend of 2 or more things Homogeneous – same composition throughout, uniformly mixed; solutions Heterogeneous – variable composition, nonuniformly mixed; contains more than 1 phase.

  19. Olive oil Oil & Vinegar Vinegar Homogeneous Heterogeneous (2 phases) Homogeneous

  20. Separating Mixtures Filtration – separates a solid from a liquid. Liquid that passes through the filter paper

  21. Distillation – separates a mixture into parts based on the boiling points of each part.

  22. Element – fundamental building block of matter; made of atoms. Each element has a chemical symbol. 1st - Capital letter 2nd - Lowercase

  23. Compound – 2 or more atoms chemically bonded in a fixed proportion. Has a chemical formula. Compounds can be broken down into simpler substances, but elements cannot. Chemical Formula H2O Subscript 2 H atoms and 1 oxygen atom

  24. The properties of compounds are different from the elements that form them. + Salt (NaCl) Relatively harmless Sodium (Na) Metal so reactive it reacts with water Chlorine (Cl2) Toxic gas used in WWI for chemical warfare 2 poisonous substances react to form a completely benign compound that is necessary for us to live.

  25. Periodic Table 7 Periods (Rows) 18 Columns (Groups or Families) Elements in each column have similar chemical properties

  26. Law of Conservation of Mass • In any chemical reaction, • reactant mass = product mass

More Related