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STARS

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STARS By: Brianna Shields January 4, 2005 DO NOW 1. Where is the asteroid belt located? 2. What is a comet made of? 3. Which planet is the fifth from the sun? – PowerPoint PPT presentation

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Title: STARS


1
STARS
  • By
  • Brianna Shields
  • January 4, 2005

2
DO NOW
  • 1. Where is the asteroid belt located?
  • 2. What is a comet made of?
  • 3. Which planet is the fifth from the sun?

3
GOAL
  • To be able to explain the universe in terms of
    stars, planets and moons relative to our solar
    system

4
STARS
  • Star Size (biggest to smallest)
  • 1. Super Giants (biggest)
  • 2. Giants
  • 3. Medium Sized

5
STARS
  • Star Size
  • 4. White Dwarfs
  • 5. Neutrons (Smallest)

6
STARS
  • What are stars made of?
  • Spectroscope measures light from stars
  • Different bands for different elements
  • Ex Table salt burns yellow due to presence of
    sodium

7
STARS
  • What are stars made of?
  • Most are made of
  • 60-80 Hydrogen
  • 20-40 Helium
  • 1-10 Oxygen, Neon, Carbon or Nitrogen

8
STARS
  • Star Temperature (coolest to hottest)
  • Related to color
  • Red Coolest
  • Red-Orange
  • Yellow
  • White
  • Blue Hottest

9
STARS
  • Star Brightness
  • Depends on size, temp and distance from earth

10
STARS
  • Why do stars shine?
  • Nuclear Fusion
  • Gravity inside
  • Pulls H atoms in tightly
  • Causes them to fuse/stick
  • Gives off heat and light

11
SUN
  • SUN
  • Made of extremely hot gases

12
SUNS LAYERS
  • Corona
  • Outside layer of the sun- hazy red halo

13
SUNS LAYERS
  • Chromosphere
  • 2nd Layer of sun where gases flare up and spew
    into space

14
SUNS LAYERS
  • Photosphere
  • 3rd layer of sun- actual surface

15
SUNS LAYERS
  • Core
  • Hot, inside part of the sun

16
Suns Layers
17
SUNS ACTIVITIES
  • Prominences
  • Violent gas loops on sun
  • Spews energy gas into space

18
SUNS ACTIVITIES
  • Solar Flares
  • Bright light bursts on sun
  • Release tons of energy heat

19
SUNS ACTIVITIES
  • Solar Winds
  • High energy particles, Streaming into space
  • Interferes with radios and phones

20
SUNS ACTIVITIES
  • Sun Spots
  • Dark, cooler areas
  • Interferes with communication technology

21
What does the sun do for us?
  • Make a list of atleast 3 things that the sun does
    for us or provides for us. (Hint What would
    happen if the sun died out?)

22
SUN
  • Why is the sun so important?
  • 1. Warm temps needed for life

23
SUN
  • Why is the sun so important?
  • 2. Holds earth in orbit

24
SUN
  • Why is the sun so important?
  • 3. Lights up moon

25
SUN
  • Why is the sun so important?
  • 4. Causes water cycle

26
SUN
  • Why is the sun so important?
  • 5. Creates weather

27
SUN
  • Why is the sun so important?
  • 6. Allows plant growth
  • Food
  • Oxygen
  • Coal, Oil, Gas

28
Assessment
  • Write the following assignment into your agenda
  • Star Lab
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