1. Element, compound or Mixture
Agenda
Submit Lab Report – today
Review: elements, Physical or chemical,
Notes on Elements, compound and mixtures.
Homework

2. H
hydrogen

3. Li
lithium

4. Si
Silicon

5. Ca
calcium

6. Sn
tin

7. B
boron

8. C
carbon

9. K
potassium

10. Ge
germanium

11. Mg
magnesium

12. Pb
lead

13. Ga
gallium

14. Na
sodium

15. Be
beryllium

16. Al
aluminum

17. Al
aluminum

18. Sr
strontium

19. Ba
barium

20. New Elements The Periodic Table of the Elements IA IIA IIIB IVB VB VIB
The Periodic Table of the Elements IA
IIA
IIIB
IVB VB
VIB
VIIB
VIIIB IB
IIB
IIIA
IVA VA
VIA
VIIA
VIIIA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

21. Physical or Chemical
Hair cut
digestion
Making tea
welding

22. Elements, Compounds and Mixtures
Date:

23. Substances
An element is a substance that cannot be decomposed by any chemical reaction into simpler substances. All known elements listed on PT.
A compound is a substance composed of two or more elements chemically combined. Ex NaCl

24. Mixtures
A mixture is a material that can be separated by physical means into two or more substances. The substances are simply mixed together – no reaction. Ex. Iron + sulfur.

25. A homogeneous mixture is a mixture that is uniform in its properties throughout. (milk, lemonade, tap water)
A heterogeneous mixture is a mixture that consists of physically distinct parts, each with different properties. (granite, sulfur mixed with iron)

26. Flow chart
Physically separable
Chemically separable

27. Practice – with table partner E/C/Ho/He
Mercury
Salt – sodium chloride
Water
Air
Snickers bar
Kool-aid
Element
Compound
Homo mixture
Hetero mixture

28. Round the room identification
On your own or with a partner, analyze the objects within – determine E, C, Ho, He

29. ECM Salt water – Ho Sugar H2O – Ho Hardware – He Silicon – E Zinc – E
Rocks – He
Distilled H2O– C
Lead – E
Sand - He
Sugar - C
Sugar H2O – Ho
Silicon – E
Baking soda – C
Oil & H2O – He
NaCl – C
Calcium – E
Glass – C
Play dough - Ho

30. Complete Homework Continue working on elements
Element, compounds and mixtures worksheet.
Tell what type of substance and mixture.
Explain reasoning