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Day, Night, Seasons

The Universe

Newton’s Laws

MoonLife Cycle of

a Star

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Day, Night, Seasons 100

What causes day and night on Earth?

Day, Night, Seasons 100

The rotation (spinning) of the Earth

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Day, Night, Seasons 200

How long does it take for the Earth to rotate one time?

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Day, Night, Seasons 200

Approximately one day or 24 hours

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What causes the seasons on Earth?

Day, Night, Seasons 300

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Day, Night, Seasons 300

The tilt of the Earth’s axis and its revolution (or orbit) around the Sun

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Day, Night, Seasons 400What would the season be in the northern

hemisphere in the picture below? Explain your answer.

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Sun

Day, Night, Seasons 400

It would be summer in the northern hemisphere because the northern part of the axis (north pole) is tilted toward the sun, so the northern hemisphere is

receiving more direct sunlight.

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Day, Night, Seasons 500

Draw a picture of the Earth and Sun that shows winter in the Southern

Hemisphere.

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Day, Night, Seasons 500

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SunEarth

Universe 100

What is a comet?

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Universe 100

Small, frozen, mass of dust and gas revolving around the sun in a highly elliptical orbit. May form a tail.

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Universe 200

List in order from space to Earth:Meteor, Meteorite, Meteoroid

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Universe 200

Meteoroid, Meteor, Meteorite

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Universe 300

Explain how scientists believe that the universe formed.

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Universe 300

Scientists believe that our universe formed about 20 billion years ago with an explosion of concentrated matter and energy, and it has been expanding ever since. This is called the “Big Bang Theory”.

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Universe 400

Compare and contrast a solar system and a galaxy.

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Universe 400

A solar system is a collection of planets and their moons that orbit around ONE

star.A galaxy is a system of millions or

billions of stars held together by gravity.

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Universe 500

Describe how scientists think stars and solar systems form.

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Universe 500

A large cloud of gas and dust (nebula) starts to spin and flatten. Nuclear fusion begins in the middle and a star is born. The left over gas and dust clumps together to form planets.

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Newton’s Laws 100

What force keeps the planets in orbit around the sun?

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Newton’s Laws 100

Gravity

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Newton’s Laws 200

What is an example of Newton’s third law?

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Newton’s Laws 200

Newton’s Cradle – when you lift and drop one of the balls, the ball on the

opposite side goes up.

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Newton’s Laws 300

Define gravity and explain the two factors that affect an object’s gravity

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Newton’s Laws 300

Gravity is: All objects are attracted to one another

The two factors that affect gravity are the mass of the object and the

distance to the object.

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Newton’s Laws 400

What is an example of Newton’s second law?

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Newton’s Laws 400

It takes more force to push a full shopping cart than an empty one

because a full cart has more mass.** Answers may vary

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Newton’s Laws 500

Summarize each of Newton’s three laws.

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Newton’s Laws 500First Law: Objects resist changes in motion (inertia)

Second Law: Relationship between force, mass, and acceleration. Example: The greater the mass of an object the greater the force needed to change its motion. (Force = Mass X Acceleration)

Third Law: For every action, there is an equal and opposite reaction

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Moon 100

What PHASE of the moon is show below?

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Earth SunMoon

Moon 100

Full Moon

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Moon 200

Draw the sun, moon, and Earth at a quarter moon.

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Moon 200

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EarthSun

Moon

Moon 300

Draw the sun, moon, and Earth at a new moon.

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Moon 300

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EarthMoonSun

Moon 400What kind of eclipse is being shown in the picture

below?

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SunEarth

moon

Moon 400

Solar eclipse

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Moon 500

Draw a diagram of a lunar eclipse

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Moon 500

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Sun

Moon

Earth

Life Cycle of a Star 100

What is nuclear fusion?

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Life Cycle of a Star 100

Two hydrogen atoms join together (fuse) to make a helium atom. Produces heat and light energy that makes the star

glow.

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Life Cycle of a Star 200

How are both massive and average sized stars born?

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Life Cycle of a Star 200

In a large cloud of gas and dust called a nebula, nuclear fusion begins in the

middle and a star is born.

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Moon Phases 300

Describe the three phases an average star goes through at the end of it’s

life.

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Daily Double!!!

Life Cycle of a Star 300

Red Giant White Dwarf Black Dwarf

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Life Cycle of a Star 400Describe the four stages a massive star

can go through at the end of it’s life.

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Life Cycle of a Star 400

Red Super giant

Supernova

Neutron star/pulsar Black hole

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Life Cycle of a Star 500

Compare the life time of an average sized star and a massive star.

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Life Cycle of a Star 500

Massive stars live about 10 million yearsAverage stars live about 10 billion years

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