A container or vacuum that keeps liquid hot or cold.
What is a thermos?
100
The study of the stars, galaxies, and planets.
What is astronomy?
100
An assignment
What is a project?
100
A ten year period
What is a decade?
100
A try-out
What is an audition?
200
This instrument is used to measure temperature.
What is a thermometer?
200
This traveler has seen the stars from teh space shuttle.
What is an astronaut?
200
a shot
What is an injection?
200
Pertaining to tenths
What is a decimal?
200
Can be heard
What is audible?
300
This is having to do with heat.
What is thermal?
300
This is a star-shaped mark used in printing and writing.
What is an asterisk?
300
To refuse to have
What is reject?
300
one tenth of a meter
What is a decimeter?
300
Those who view or listen to a performance
What is an audience?
400
This dial controls the temperature on the air conditioner and heater.
What is a thermostat?
400
Of, pertaining to, or connected with astronomy, very large.
What is astronomical?
400
To throw out, drive out, or force out
What is reject?
400
A competition having ten events
What is decathalon?
400
A place where you view or listen to a performance
What is an auditorium?
500
Electricity generated by heat.
What is thermoelectricity?
500
Also called minor planet, any of the thousands of small bodies of from 480 miles to less than one mile (in diameter that revolve about the sun in orbits.