A heater is placed under one corner of a water bed mattress. Warm water moves throughout the mattress because of A. conduction
B. convection
C. Radiation

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)