1. Calculate the weight of a person with a mass of 67.0 kg on the earth (g = 9.80 m/s2) and on Mars (g = 3.71 m/s2). Use this example to describe the differences between mass and weight.

Classify each possible hypothesis about a medicinal aloe vera plant as falsifiable or non-falsifiable. aloe vera gel is the best natural skin moisturizer. aloe vera gel can heal wounds by boosting cell renewal. aloe vera juice tastes better than carrot juice. drinking aloe juice can reduce the risk of lung cancer.

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

Convection occurs when thermal energy is transferred by the movement of