For convection to occur,

A. dark objects are required to absorb energy.

B. substances must be in contact with each other.

C. particles must be able to flow within a substance.

D. heat must transfer from an area of less energy to more energy.

What is the chemical compound of kitchen salt?

Which material would melt ice more quickly? A. Styrofoam B. metal

The color of an opaque object is the same as the light that is

Higher amounts of water vapor are found near the Gulf of Mexico because a. the Gulf's high water temperature promotes evaporation. b. the Gulf's high water temperature promotes condensation. c. the Gulf's low water temperature promotes condensation.

Ocean water contains quite a bit of NaCl. Aside from it tasting bad, why is it not a good idea to drink ocean water?

Objects falling through air experience a type of friction called a. terminal velocity. b. air resistance. c. inertia. d. rolling frictio

Between which pair of objects would the largest gravitational attraction be found

Which of these items are made of cells? Check all that apply

Which of the following is true about high-energy mechanical devices?

Which sequence of coefficients will balance the following equation Ca (s) O2 (g) 2CaO (s)