Exploring Shadows and Stars

Why does the streetlight outside Jackson's house appear larger and brighter than the other lights in the neighborhood?

• It is the largest light in the city.

• It is the closest light to Jackson's house.

• It is the only light that emits light.

• It is the hottest light in the neighborhood.

Which of the following best explains why shadows change length and direction throughout the day?

• The Earth is rotating on its axis.

• The Sun is moving around the Earth.

• The Moon is blocking the Sun's light.

• The stars are changing positions.

David and Grace are playing in the park. They notice that when they jump, they always come back down to the ground. What force is responsible for pulling them back towards the Earth?

• Magnetism

• Friction

• Gravity

• Wind

Why do we experience different seasons on Earth?

• The Earth is closer to the Sun during summer.

• The Earth's axis is tilted as it revolves around the Sun.

• The Sun's brightness changes throughout the year.

• The Moon's phases affect the seasons.

How does the gravitational force of Earth affect objects?

• It pushes objects away from Earth.

• It pulls objects towards the center of Earth.

• It makes objects float in the air.

• It has no effect on objects.

Which of the following statements supports the idea that the Sun is a star?

• The Sun is made of rock and metal.

• The Sun is a hot ball of gas that emits light.

• The Sun is the only source of light in the universe.

• The Sun is a planet that orbits the Earth.

What would happen to the gravitational force if the Earth were twice as massive?

• The gravitational force would be weaker.

• The gravitational force would be stronger.

• The gravitational force would remain the same.

• The gravitational force would disappear.

How can you use a shadow to determine the time of day?

• By measuring the length and direction of the shadow.

• By observing the color of the shadow.

• By counting the number of shadows.

• By measuring the temperature of the shadow.

Explain why the stars appear to move across the sky each night.

• The stars are moving around the Earth.

• The Earth is rotating on its axis.

• The stars are changing their positions in space.

• The Moon is blocking the stars.

If the Sun were twice as far from Earth, how would its apparent brightness change?

• It would appear twice as bright.

• It would appear half as bright.

• It would appear four times as bright.

• It would appear one-fourth as bright.