Place the pressure gauge near the bottom of the tank. use the faucet and the drain to change water level, observe and record how the pressure gauge reading changes according to the water level qualitatively

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation:

iron would move it is magnetic there is a mag field around the current in the wire

wavelength divides in half and speed stays the same.