Year7The Earth in Space
Key Concepts


SCIENCE UNDERSTANDING

Predictable phenomena on Earth, including seasons and eclipses, are caused by the relative positions of the sun, Earth and moon.

ELABORATIONS

c Investigating natural phenomena such as lunar and solar eclipses, seasons and phases of the moon
c Comparing times for the rotations and orbits of the Earth, sun and moon
c Modelling the relative movements of the Earth, sun and moon and how natural phenomena such as solar and lunar eclipses and phases of the moon occur
c Explaining why different regions of the Earth experience different seasonal conditions
NAME:


Timing 10 lessons

Assessment
  1. 1. Long term observation
  2. 2. Project assignment
  3. 3. Test

Science Quest
TEXTBOOK
SCIENCE Quest PRACTICALS / ACTIVITIES
SCIENCE Quest
HOMEWORK
OTHER ACTIVITIES/RESOURCES
1
6.1 Sunrise, sunset p 196
Comparing times for the rotations and orbits of the Earth, sun and moon
Explaining why different regions of the Earth experience different seasonal conditions
Suggestions:
Investigation 6.2 Long day short days.
Digital documents:)
eBookPLUS: int-0006 Day, night and time zones
Text book Ques: p198, q2, 3, 4, 5, 6, 7, 9
Use Education Perfect (EP)
Yr 7 à Scienceà Universeà Sun
Words to Learn
Revolution, orbit, rotation,
2
6.2 A The Moon p 199
Investigating natural phenomena phases of the moon
Investigation- see #7 below
Text book Ques: p200, q2, 4,
eBookPLUS: Man on the moon weblink
eBookPLUS: Day, night and time zones. Int -0006
http://www.nasa.gov/mission_pages/apollo/index.html?
Extension
eBookPLUS: The Dish weblink
Use Education Perfect (EP)
Yr 7 à Scienceà Universeà Moon
Words to Learn
Phase, wax, wane, gibbous
3
6.3 Systems: Phases of the moon p 201
Investigating natural phenomena such as phases of the moon
Investigation 6.5: Modelling the phases of the moon.
Text book p202 ques 1, 2, 3, 5
eBookPLUS: Worksheet 6.1 Phases of the moon
here is a video that is a fair explanation of the phases of the moon the animation below is better because you can start and stop it.

http://ww2.valdosta.edu/~cbarnbau/astro_demos/frameset_moon.html

http://astro.unl.edu/naap/lps/animations/lps.html
Use Education Perfect (EP)
Yr 7 à Scienceà Universeà Moon Phases

More videos

http://highered.mheducation.com/olcweb/cgi/pluginpop.cgi?it=swf::800::600::/sites/dl/free/0072482621/78778/Lunar_Nav.swf::Lunar+Phases+Interactive
Words to Learn

More videos
Look at this animation to help you understand the phases of the moon.

http://www.sumanasinc.com/webcontent/animations/content/moonphase.html
4
6.4 Lunar attraction p203
Modelling the relative movements of the Earth, sun and moon to cause seasons and tides.
Text Book Read p 203 to 204 Ques 1 to 5
eBookPLUS: int-0225 Tides
good for the explanation of the tides.

https://www.youtube.com/watch?v=1otfxSwaG5g
Use Education Perfect (EP)
Yr 7 à Scienceà Universeà Moon Tides
Words to Learn
Spring tide, neap tide
5
6.5 Solar and Lunar eclipses p205
Modelling the relative movements of the Earth, sun and moon and how natural phenomena such as solar and lunar eclipses
Investigation 6.6: Modelling the solar and lunar eclipses
Text book p207 ques 1, 2, 3,
eBookPLUS: int-0207 Eclipses
. www.youtube.com/watch?v=TeA1nvD4rjE

Moon movie
Use Education Perfect (EP)
Yr 7 à Scienceà Universeà Eclipses àsolar + lunar
Words to Learn
Solar eclipse, lunar eclipse
6
Science Inquiry Skills -Reportable
Record the phases of the moon for 2 weeks and predict the shape of the moon 1 week from a given date based on their past observations.

Instructions for Earth in Space assignment

7
Science as a Human Endeavour -Reportable
After completing the sections 6.2,
  1. 1. Research one astronomer
OR
  1. 2. Collect information about the most recent exploration of Pluto by the space craft ‘New Horizon’–
• Use either “Popplet ‘ or ‘Explain Everything’ to show some of the recent discoveries and explain how these new discoveries are different to the ideas held by scientists before this exploration.
A very good answer will include :
• the name of the astronomer,
• when he or she lived,
• For what reasons are they remembered. –
• How their discoveries affect our lives today.
A very good answer will include :
• a list with pictures of the new discoveries,
• an explanation of how the new discoveries changed our original ideas about this planet.
• How the discoveries were made – • Information about the spacecraft ‘New Horizons’ that include; time of flight, size of spacecraft, time taken to send information back to earth
Use Education Perfect (EP)
Yr 7 à Scienceà Universeà Astronmers


NASA
Some things to search for

New Horizons

New Horizons | NASA

NASA's New Horizons phones home from Pluto

http://www.australiangeographic.com.au/topics/science-environment/2015/07/pluto-revealed-what-is-new-horizons






When thinking about day length what affects the length of a day?
A day is the time it takes for the earth to rotate once on its axis. This time is 23hours 56 minutes and 4 seconds - we average this out and call a day a 24 hour period.

How long is a day in
a) Australia, 24hrs
b) India 24hrs
c) France 24hrs
d) Greenland 24hrs
e) Antarctica 24hrs
f) Moon - 29.5 days
g) Mars - 24 hours and 40 min
h) Jupiter - 9 hours and 56 min
i) Venus - 116 days and 18 hours

What is interesting about these day lengths?
They are different because each of theses planets spin at different rates ( speed)

How is night different to day?
The side that faces the Sun is day time and as the earth rotates on its axis it turns away from the sun and faces the dark of space.


Earths orbit is an elipse
This is called one

revolution,

and it is the length of

one year.


A time zone is a region of the globe that observes a uniform standard time for legal, commercial, and social purposes. Time zones tend to follow the boundaries of countries and their subdivisions because it is convenient for areas in close commercial or other communication to keep the same time.
Most of the time zones on land are offset from Coordinated Universal Time (UTC) by a whole number of hours (UTC−12 to UTC+14), but a few zones are offset by 30 or 45 minutes (e.g. Newfoundland Standard Time is UTC−03:30, Nepal Standard Time is UTC+05:45, and Indian Standard Time is UTC+05:30).
Some higher latitude and temperate zone countries use daylight saving time for part of the year, typically by adjusting local clock time by an hour. Many land time zones are skewed toward the west of the corresponding nautical time zones. This also creates a permanent daylight saving time effect.


When thinking about the seasons its true to say
a) because the earth is on an axis the northern hemisphere has night when we have day

b) because the earth is on an axis the northern hemisphere has autumn when we have summer

c) because the earth moves around the sun its axis is sometimes pointing away from the sun and sometimes pointing towards the sun we get different seasons

d) because the earths axis is always pointing toward the sun the top of the earth - the northern hemisphere is always closer to the sun in summer



About the Moon


When there is a new Moon you can't see it at all.
Things about the Moon.
add to the list the things we know or should learn about the
Our ideas are:
The light you see on the Moon, it is light reflecting from the sun.
The Moon takes 29.5 days to complete a full cycle. It takes 29.5 to get a new moon. The Moon has four phases that it takes for a full cycle of Moons. The Moon has four phases that it takes for a full cycle of Moons. When the Moon appears to be getting bigger, it is Waxing. When it appears to be getting smaller, it is Waning. You can see the moon from the earth if it is a full moon,


The sun makes the Moon's light
The Moon doesn't have its own light.
The Moon does not have it's own light, the Moon reflects the Sun's light


The Moon orbits the earth.
We see different amounts of light and shade of the Moon.
The Moon is smaller than Earth.


We only ever see one side of the Moon. The moon reflects the light of the Sun.


The Moon takes the same amount of time to rotate on its axis as it does to orbit the Earth


The moon phases affects religious occasions
You can still see the moon even when it is day but it appears smaller and produces less light.
You have less gravity on the Moon, but your mass stays the same

Waxing and waning Moon

Waxing means its growing from a new moon (black) to a full moon
Waning means its shrinking from full moon to new moon
.


Tides
Gravitational pull of the moon causes the water in the oceans to be pulled toward the moon. This would be a high tide. The side of the earth away from the moon would be experiencing a low tide.

The earth and sun can interact to produce supersize tides
really high and really low tides are called "Spring Tides" Tides that don't change very much are called Neap tides
The position of the sun and moon for spring tides is a full moon or a new moon in between the the sun and the earth - this means all three line up - the result is a strong gravitational pull and so we get a very very high tide.
When the sun and earth and moon make a right angle we get a neap tide.
spring tide.png



neap tide.jpeg

Size of the solar system
use this link to find the size of the solar system to scale
http://thinkzone.wlonk.com/SS/SolarSystemModel.php


Class Notes
Investigation 6.1
Day and Night
Q1. Earth rotates anticlockwise as we look at it from on top of the north pole. This is from West to East.
Q2. Sun rises in the east and sets in the west
Q3. Africa is in darkness when Australia is lit up
Q4 The sun rises in the east. Melbourne is in the east and perth is 5000km to the west. This means that the sunrise happens first in Melbourne and the earth has to revolve until Perth gets a sunrise and this is 2 hours later.

Investigation 6.2
Short Day Long Days
Q1 The Bottom pin comes into the light first when the southern hemisphere is tilted towards the sun (light)
Q2 There are more Day light hours in one rotation for the pin in the southern hemisphere compared to the pin in the northern hemisphere
Q3
Q4
Q5 the number of daylight hours equal the number of night hours at the equator
Q6 Because of the tilt of the earth the sun does not always reach the top of the earth. This means it will be in darkness for many days.