chp 1 overview notes: earth’s ingredients for life

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Chp 1 Overview Notes: Earth’s Ingredients For Life Main Idea 1: Specific characteristics make Earth inhabitable. What would these be?

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Chp 1 Overview Notes: Earth’s Ingredients For Life. Main Idea 1: Specific characteristics make Earth inhabitable. What would these be?. Atmosphere. Reason It Survives:. The largest mass of Earth holds the smallest gas particles. Important Characteristics For Life:. Ave temp = 17C. - PowerPoint PPT Presentation

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Page 1: Chp  1 Overview Notes: Earth’s Ingredients For Life

Chp 1 Overview Notes:Earth’s Ingredients For Life

Main Idea 1: Specific characteristics make Earth inhabitable.What would these be?

Page 2: Chp  1 Overview Notes: Earth’s Ingredients For Life

Atmosphere

The largest mass of Earth holds the smallest gas particles.

Reason It Survives:

Important Characteristics For Life: Ave temp =

17COxygen!

Page 3: Chp  1 Overview Notes: Earth’s Ingredients For Life

Another Ingredient for Life on Earth is Liquid Water

Where did Earth’s water come from?

Page 4: Chp  1 Overview Notes: Earth’s Ingredients For Life

Liquid WaterTwo Possible Origins:

1. Water vapor came from Early volcanoes, then condensed.

2. Collisions w/ icy asteroids & comets brought water.

Page 5: Chp  1 Overview Notes: Earth’s Ingredients For Life

About The Ozone Layer….

Good or bad?

Page 6: Chp  1 Overview Notes: Earth’s Ingredients For Life

Ozone Layerhelps protect us!!Composed Of:Molecules made of 3 oxygen atoms.Effects:

Absorbs UV radiationFrom sun so less UV reaches us.

Page 7: Chp  1 Overview Notes: Earth’s Ingredients For Life

What causes Earth’s magnetic field and why is this important to life on Earth?

Page 8: Chp  1 Overview Notes: Earth’s Ingredients For Life

Magnetic Field

Formed By:Earth’s rotations “swirl” the iron core. This creates a magnetic field with N & S Poles.Effects:

Charged particles from the sun are blown off course by the magnetic field.

Page 9: Chp  1 Overview Notes: Earth’s Ingredients For Life

Temperature

Main Points:Earth is not too hot or too cold b/c of the Greenhouse Effect.

Page 10: Chp  1 Overview Notes: Earth’s Ingredients For Life

When CO2 & other gases in the atmosphere trap in solar radiation; causes global temps to rise.

Greenhouse Effect:

Page 11: Chp  1 Overview Notes: Earth’s Ingredients For Life

What is the greenhouse Effect?

Page 12: Chp  1 Overview Notes: Earth’s Ingredients For Life

Main Idea 2: Matter & energy on Earth are neither created nor destroyed; they are merely transformed from one form to another.

Page 13: Chp  1 Overview Notes: Earth’s Ingredients For Life

Conservation of EnergyPotential Energy

Describe:Energy of matter derived from its position.

Page 14: Chp  1 Overview Notes: Earth’s Ingredients For Life

Conservation of EnergyKinetic EnergyDescribe:Energy of matter associated with motion.

Page 15: Chp  1 Overview Notes: Earth’s Ingredients For Life
Page 16: Chp  1 Overview Notes: Earth’s Ingredients For Life

Rocks are constantly changing as a result of weathering forces, melting..This is an example of

Conservation of Matter.

Explain:During rock cycle, matter making up each rock is transformed into a differ chemical structure, andso on.. No NEW Matter, none LOST.

Page 17: Chp  1 Overview Notes: Earth’s Ingredients For Life

Conservation of Matter: Not created, not destroyed. Just changes from one form to another.