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Specific Learner Expectation. Students will understand that the ___ should never be viewed ______, nor by use of simple telescopes or _________, and that safe viewing requires appropriate methods and ________ precautions. Sun Light And Star Light.
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Specific Learner Expectation • Students will understand that the ___ should never be viewed ______, nor by use of simple telescopes or _________, and that safe viewing requires appropriate methods and ________ precautions.
Sun Light And Star Light • The Sun is a ____ and is considered an _________ sized star. • It is also the ________ star to earth. • All other stars are seen as _______________ in the sky.
Specific Learner Expectation • Recognize that the ____ and stars _____ the light by which they are seen and that most other bodies in space, including Earth’s ____, ______ and their moons, _____, and ______, are seen by _____________.
Do They or Do They Not; Produce Their Own Light? Comets, Meteors, Asteroids, Planets and Moons
Comets • Sometimes called “Dirty Snowballs” • Tail illuminates when the ice heats up and changes to a vapour (gas).
Meteors & Meteorites • Meteor - • Meteorite – • Turns _______ when it passes through the atmosphere – most ________ or _________. • _____________ and __________ are caused by meteors. • __________ of meteorite hit the earth each year. Most is the size of a grain of sand.
Asteroids • Asteroids- • One theory suggests that they are the remains of a ________ that was destroyed in a massive collision long ago. • More likely, asteroids are material that never turned into a planet. • They are large rocks that can range up to _________ in diameter. • They are also known as “___________________” • THEY ___________ PRODUCE THEIR OWN LIGHT! Reflect Sunlight! • Mostly travel between Mars and Jupiter.
Specific Learner Expectation • Recognize that the apparent ___________ of objects in the night sky is _________ and ___________, and explain how this apparent movement is related to Earth’s _________.
STAR LIGHT, STAR BRIGHT RISING AND SETTING?? • Do the SUN, MOON and STARS actually move?? • ____ The Sun, Stars and the Moon only ______ to “_____” in the _____ and _____ in the “_______” • The apparent movement of objects in the night sky is _______ and ___________. • This is because the Earth is _________ in a _________________ direction.
Specific Learner Expectation • Describe seasonal changes in the length of the _____ and ______ and in the angle of the _____ above the horizon.
N S Main Reason why we have Seasons: The Earth is:
Summer - N S Winter -
N N N S S S N Summer Winter S Spring Fall Winter Summer Fall Spring
Solistices ___________________ - Northern Hemisphere – ______ - Southern Hemisphere – ______ Equinox • Northern Hemisphere (Opposite for Southern) • - ____________ – Winter to Spring • - ____________ – Summer to Fall
A Year on Earth • _______ days to move around the sun • Every 4 years we have a leap year • - Feb 29 (additional day) • - 366 days that year otherwise 365 • Each planet has a different length of a year • - _______is the closest to the Sun • - 88 days • - _____________ is the furthest • - 248 years
Time Zones Why do we have them? How many Time Zones do we have?
Specific Learner Expectation • Construct and use a device for ________ the apparent movement of the ____ over the course of a day. • Ex. _________ or _____________
Sun Time & Shadows • Does a shadow change over time? • The longest shadow’s are… • The shortest shadow is…
Sun Time (Using a Sun Dial) Noon 1:00 pm 11:00 am 9:00 am 3:00 pm
Shadow Stick Readings • Lets take a look at the Shadow Stick Readings bar graph. • What inference or conclusion can you make? • Finish the graph using your knowledge of sundials. • Explain why you finished the graph the way you did. Your explanation should include a description of why shadow lengths change throughout the day.
Specific Learner Expectation • Describe the _______ and ________ of individual _______ and groups of stars (_____________) as they move through the night sky.
Constellations (Groups of Stars) • Stars differ greatly in their distance from the Earth
Where did the names come from? The constellations received their names from _____ and ______ mythology.
This is caused ______________________ but by the _____________________________. The ___, _____ and __________________ always stay in the same location, but the earth is always moving. Therefore, we can predict how a constellation will look during the different months of the year.
Specific Learner Expectation • Recognize that the _______ phases are ________ and ___________, and describe the cycle of its phases. • __________ the phases of the Moon in drawings and by using improvised models. • Recognize that not only Earth, but other _______, have ________; and identify similarities and differences in the characteristics of those moons.
Phases of the Moon • The Moon’s phases are ________ and _____________. • Some of the planets in our ____________ have no moons, while other have multiple moons. • Moons are also known as _______________.
The Moon's unilluminated side is facing the Earth. The Moon is not visible (except during a solar eclipse).
The Moon appears to be partly but less than one-half illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is increasing.
One-half of the Moon appears to be illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is increasing.
The Moon appears to be more than one-half but not fully illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is increasing.
The Moon's illuminated side is facing the Earth. The Moon appears to be completely illuminated by direct sunlight.
The Moon appears to be more than one-half but not fully illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is decreasing.
One-half of the Moon appears to be illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is decreasing.
The Moon appears to be partly but less than one-half illuminated by direct sunlight. The fraction of the Moon's disk that is illuminated is decreasing.
Specific Learner Expectation • Recognize that the other ________ known planets, which _______ around the _____, have characteristics and surface conditions that are different from Earth; and identify examples of those differences.
The Planets In Our Solar System
Our Solar System • In our Solar System, ______ _______ revolve around our ___. • Pluto, has now been classified as a dwarf planet. Pluto has been demoted because it does not dominate its neighborhood. Charon, its large "moon," is about half the size of Pluto, while all the true planets are far larger than their moons. • The 8 planets travel in the same direction (_______________) • They all have _____________ and _____________ conditions that are different from Earth.
Remember The Planets! • M • V • E • M • J • S • U • N • M • V • E • M • J • S • U • N