What are the sun and stars?
A ______ is a ball of hot glowing gases that makes its own light.
star
Liam wants to observe the stars in the night sky. Which tool would be most helpful? a. goggles b. a magnifying glass c. a microscope d. a telescope
a. telescope
Marta had a picnic. She placed one bag of ice on a table in the shade and another bag in the sun. Both bags were the same size and shape. The ice placed in the sun melted more quickly. Why?
Things heat up more quickly in the sun than in the shade.
A force that pulls objects towards one another and pulls objects toward Earth is _____.
gravity
A _______ is a push or pull.
force
Ally wants to use a model to show her class that the sun appears larger than the other stars because it is closer the the Earth. What could she use as her model?
two foam balls of the same size
One way scientists classify stars is by color. Blue stars are the hottest. Red stars are the coolest. The sun is a yellow star. Which color star is the sun hotter than?
a red star
Joel knows the sun's radiant energy travels through space and Earth. Which is not an effect of radiant energy on Earth? a.It causes the Earth's land to heat up. b.It causes Earth's oceans to heat up. c.It causes objects to fall to Earth. d.It lights up the daytime sky.
c. It causes objects to fall to Earth.
Which is an example of overcoming gravity? 1. falling into a pool 2. dropping a ball 3. skiing down a hill 4. catching a baseball
4. catching a baseball
Two students want to sit outside in a place that is the coolest from 11:00 a.m. to 1:00 p.m. One thinks a shady spot will be cooler, but the other thinks a sunny spot would be just as cool. How could they use two thermometers to find out?
Compare the temperatures of the shady spot and the sunny spot from 11:00 a.m. to 1:00 p.m.
what are three differences stars can have?
brightness, size, color
Hannah notices that the stars and the sun appear very different. Why do other stars appear different from the sun?
The stars are further from Earth.
The sun is a ball of hot, glowing ______.
gas
There is not force that overcomes gravity's force on him.
Tommy and Maura record how many hours of sunlight they received on the first day of summer. Tommy lives in Alaska. Maura lives in Florida. How could they double check their own data?
Record the hours again from their own homes.
What color is the hottest type of star?
blue
stars look like ____ of light in the night sky.
points
The sun is a star that gives off light and _____.
heat
imagine there was suddenly no gravity on Earth? What would happen to a picture hanging on a nail?
what is a astronauts favorite drink?
a cup of gravi-tea
What is Radiant Energy?
Energy that can travel through space.
what are stars born from?
giant clouds of gas and dust
How does the sun impact plant life on earth?
It produces light energy, which plants use to make food through a process called photosynthesis.
why does gravity pull paper down at a slower rate than a brick?
its light weight
what are the largest stars called?
Supergiants