Presentation is loading. Please wait.

Presentation is loading. Please wait.

What are the 4 branches of Science?

Similar presentations

Presentation on theme: "What are the 4 branches of Science?"— Presentation transcript:

1 What are the 4 branches of Science?
1. Biology Study of life 2. Chemistry Study of composition of matter Physics Study of forces and motion Earth Science Study of the Earth and its surroundings

2 Four Branches of Earth Science
Geology Study of the solid earth Oceanography Study of the oceans Meteorology Study of the atmosphere and weather Astronomy Study of the universe

3 4 Earth’s Spheres

4 1. Hydrosphere = all earth’s water…everywhere.

5 2. Atmosphere = all the air surrounding earth

6 3. Geosphere = all of the solid earth

7 4. Biosphere = all living things on earth

8 Determining Location Latitude – distance N or S of equator measured in degrees Lines run east and west Measures distances N & S 0º = equator 90º = poles

9 Determining Location Longitude – distance E or W of the Prime Meridian measured in degrees Lines run N and S Measures distances E & W 0º = Prime Meridian…Greenwich, Eng. 180º = International Date Line


11 Maps Projecting from a round earth/globe onto a flat map will always produce some type of distortion… Land & distances at the poles are greatly enlarged Land & distances at the equator are normal

12 Topographic Maps (Contour Maps)
Represents the 3-D earth in 2-D. Shows elevations by contour lines (lines of equal elevation) Contour interval – elevation difference between adjacent lines Scale – a distance on the map = a distance on the surface (ratio, bar, verbal) Legend/key – explains symbols on the map

13 Latitude and Longitude
Written as follows: 118°00’00” meaning 118 degrees, 0 minutes, and 0 seconds. 31°30’15” = 31 degrees, 30 minutes, and 15 seconds. Remember that minutes and seconds only go to 60…not 100! Always connect the top/bottom and left/right lines of lat or long


15 Rules of Contour Lines Never cross “Vs” point upstream
Closely spaced lines = steep land Farther spaced lines = flatter land Form closed loops

16 Atoms Atom – the first man
Atom – smallest particle of matter that contains the characteristics of the element Are neutral Equal #s protons and electrons

17 Atom Parts Protons – positively charged Neutrons – no charge (neutral)
1 amu = mass Found in nucleus Neutrons – no charge (neutral) Electrons – negatively charged Very little mass Outside of nucleus in energy levels

18 Atomic number – # of protons in the nucleus
Sequentially numbered Mass number - # of protons and neutrons in the nucleus Isotope – atom with same # of protons but a different # of neutrons Used for dating rocks/fossils/etc EX: 12C and 14C Ion – atoms that gained or lost electrons giving them a charge (+ or -)


20 Mixtures, Solutions, Compounds
Mixture – combination of substances… Components don’t lose identities Easy to separate components Not in a set ratio Solutions – special type of mixture Compounds – 2 or more elements chemically combined Components do lose their identity Components can’t be separated out easily Components in a specific, set ratio

21 Atomic Bonds Atoms without a full outer energy level are likely to bond chemically…3 types: Ionic – formed when electrons are transferred between atoms - between metals and non-metals Covalent – when electrons are shared between the atoms of non-metals Metallic – when electrons are shared by all the metal ions on the surface of the “stuff”

Download ppt "What are the 4 branches of Science?"

Similar presentations

Ads by Google