1. Elements, Compounds, Mixtures

2. The building blocks of Matter Consists of Protons (+), Electrons (-),
and Neutrons (N).
Consists of only one kind of atom,
Cannot be broken down into a simpler type of matter by either physical or chemical means
Can exist as either atoms or molecules.
Images are from

3. A molecule consists of two or more atoms of the same element, or different elements, that are chemically bound together.
In the animation above, two nitrogen atoms
(N + N = N2) make one Nitrogen molecule .

4. Atoms of two or more different elements bound together.
Can be separated into elements chemically, but not physically.
In the animation above, water (H20) is a compound made of Hydrogen and Oxygen.
Animated images and notes from

5. They are substances held together by physical forces, not chemical.
Can be separated physically.
Solutions are also mixtures.
The substances are not uniformly mixed.
Example: Sand in a glass of water.
Images are from

6. Example: Sugar and Water
Solutions are groups of molecules that are mixed up in a completely even distribution.
Uniform Distribution.
Example: Sugar and Water
Images are from

7. Are heterogeneous mixtures consisting of parts
that are visible to the naked eye.
Substances will settle over time.
Example: the ingredients in salad dressing

8. Can you identify the following?
You will be shown a series of photos. Tell if each photo represents an item composed of an element, compound, or mixture.
Review:
An element contains just one type of atom.
A compound contains two or more different atoms joined together.
A mixture contains two or more different substances that are only physically joined together, not chemically.
A mixture can contain both elements and compounds.

9. Element, Compound, or Mixture?
Rocks

10. Element, Compound, or Mixture?
Rocks

11. Element, Compound, or Mixture?
Copper

12. Element, Compound, or Mixture?
Copper

13. Element, Compound, or Mixture?
Jelly Beans

14. Element, Compound, or Mixture?
Jelly Beans

15. Element, Compound, or Mixture?
Table Sugar

16. Element, Compound, or Mixture?
Table Sugar

17. Element, Compound, or Mixture?
Diamond

18. Element, Compound, or Mixture?
Diamond

19. Element, Compound, or Mixture?
Tea

20. Element, Compound, or Mixture?
Tea

21. Element, Compound, or Mixture?
Salt

22. Element, Compound, or Mixture?
Salt

23. Element, Compound, or Mixture?
Neon Gas

24. Element, Compound, or Mixture?
Neon Gas

25. Element, Compound, or Mixture?
Salad

26. Element, Compound, or Mixture?
Salad

27. Element, Compound, or Mixture?
Pure Water

28. Element, Compound, or Mixture?
Pure Water

29. Element, Compound, or Mixture?
Aluminum

30. Element, Compound, or Mixture?
Aluminum

31. Element, Compound, or Mixture?
Lemonade

32. Element, Compound, or Mixture?
Lemonade

33. Element, Compound, or Mixture?
Silver

34. Element, Compound, or Mixture?
Silver

35. Element, Compound, or Mixture?
Sand

36. Element, Compound, or Mixture?
Sand