Heat – Bill Nye Video Study Guide 1. Heat is __energy__ and can do work.

2. Heat moves around the universe in __3__ ways. 3. Hot air moving up is an example of (conduction, convection, or radiation).

4. A microwave oven uses (conduction, convection, or radiation) to heat foods.

5. A metal spoon heated by hot soup is an example of (conduction, convection, or radiation).

6. Molecules in cold things move more __slowly__ than in hot things. 7. Which has more heat energy – the ice sculpture or a lighted match?

8. The transfer of heat by currents through liquids or gases is called .

9. An infrared camera in sensitive to radiation. 10. Liquid Nitrogen’s temperature is minus degrees Celsius. 11. A thermos bottle uses a to keep heat in the thermos. 12. A fire radiates waves.

13. The paper spiral turns because of . 14. Heat is measured in or .

15. Cloth

8. Convection

9. Heat (Radiation)

10. Between -210 and -196

11. Vacuum

12. Infrared

13. Convection

14. Unit Joule or British thermal unit and calorie are used too

15. (I don't understand what's being asked here)

Hope this Helps you

Did 1-7 need answers? or no?

from 1609, galileo galilei used the recently invented telescope to observe the sun, moon and planets. he saw the mountains and craters of the moon, and for the first time revealed the planets to be worlds in their own right. galileo also provided strong observational evidence that planets orbited the sun.

his discoveries about the moon, jupiter's moons, venus, and sunspots supported the idea that the sun - not the earth - was the center of the universe, as was commonly believed at the time.galileo turned his gaze toward venus, the brightest celestial object in the sky - other than the sun and the moon.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .