Show:
Miscellaneous
Density
Floating and Sinking
Our Solar System
The Universe Beyond
100
What is the source for light in outer space?
Any star
100
What 2 things does density depend on?
Mass and Volume
100
Why does the oil float top of the vinegar in your salad dressing bottle?
oil is less dense than the vinegar
100
What is the length of one rotation of earth?
1 day or 24 hours
100
What is the shape of our galaxy?
spiral
200
What is the term for the inner planets?
Terrestrial
200
What is one way to calculate the volume of a material?
length times width times height
200
Why can a cork float on water?
Less dense than water
200
What is the reason we have day and night?
Earth's rotation
200
Why can't we see the shape of the Milky Way from Earth?
Because we are within it
300
Seasons are the result of __________ (2 parts to the answer)
Earth's tilted axis and revolution
300
What is the density of water?
1 g/mL
300
What does Archimedes' Principle help to explain?
The relationship between buoyancy and density
300
What is the phase of our Moon you cannot see?
new Moon
300
What is the most likely source of communication from other intelligent life forms in the universe?
a nearby solar system
400
What is the age of our Sun?
about 4-5 billion years old
400
What is the name of the method for finding the density of an irregularly shaped object?
displacement
400
What would you change about a sinking boat to make it float?
Make volume greater than its mass to change its density to make it float.
400
Compare Venus's surface temperature to Earth's.
It is much hotter
400
What is the sequence of stars from hottest to coolest?
blue, yellow, orange, red
500
Where is the gravitational force greatest in OUR UNIVERSE!!
a black hole
500
Think of the arrangement of atoms in a substance. Atoms in the least dense solid will have the atoms__________
far apart
500
This is the upward force on a swimmer that balances the downward force of gravity.
buoyancy
500
What happens when Earth moves into the Moon's shadow?
solar eclipse
500
What is the name for a region so dense that nothing, including light, can escape its gravity field.
Black hole