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1. The branches of Earth Science are:. Geology, Astronomy, Meteorology, and Oceanography. 2. Atmosphere – layer of gases that surround Earth Lithosphere – solid rock layer around Earth Hydrosphere – layer of liquid water that surround Earth Biosphere – life part of Earth.
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1. The branches of Earth Science are: Geology, Astronomy, Meteorology, and Oceanography
2. Atmosphere – layer of gases that surround Earth Lithosphere – solid rock layer around Earth Hydrosphere – layer of liquid water that surround Earth Biosphere – life part of Earth
4. Observation – descriptions about the environment using the 5 senses . Example: The book is red.
5. Qualitative observation describes the condition or physical attributes of something. Ex. red book Quantitative observations describes the amount of something in the environment (using includes a number). Ex. 4 red books
6. Inference – an educated guess. Example: It will rain tomorrow.
7. Equilibrium – a balance between opposing forces. Example: Tug of war game
8. Interface – the boundary between 2 different materials. Example: Air and Water (pond) and weather fronts
9. Solid – L x W x H = V Liquid – measured using a graduated cylinder in mL.
15. Example: 30°F increases to 48°F in 6 hours Rate of Change = change in field value/time Rate of Change = (48°F - 30°F) / 6 hours Rate of Change = 3°F/hr
16. Percent error = (difference between your value and accepted value / accepted value) x 100%
17. Density – amount of matter per unit volume; how tightly packed matter is. D = m / v * m = D x v * v = m / D
18. Densest – solid Least dense – gas *Except for water – densest as liquid!
22. Stays the same! (Mass and Volume will also be halved so the ratio stays the same.)
24. D = 45g / 9 mL D = 5.0 g/mL
25. m = v x D m = 6 x 3 = 18.0g
26. v = m / D v = 20 / 10 = 2.0 cm^3
27. a) D = m / v b) D = 348.6g / 124.6 mL c) D = 2.8 g/mL d) Quartz – 2.65 g/mL e) Percent error = (difference between your value and accepted value / accepted value) x 100% f) % error = ((2.8-2.65) / 2.65) x 100 g) % error = 5.7 %