Heating Earth's Surface Lab

PURPOSE: The purpose of this lab was to see what the heat did to the sand and water. It was to see which one heated faster. HYPOTHESIS: The water temperature is to get warm and level is to increase. Also, the sand temperature is to get warmer and the level is to rise. MATERIALS:2 thermometers or temperature probes, 2 beakers, 400 mL, water, 300mL, metric ruler, string, ring stand and two ring clamps, sand, 300mL, lamp with 150-W bulb, clock or stopwatch, and graph paper. PROCEDURE: !) put 2 filled beakers of water(300 mL), and sand(300mL) separatly on the ring stand. 2) Then, use the clamp to get the lamp/bulb over the beakers. 3) turn on the lamp by plugging it into an outlet. 4) Attatch 2 pieces of string coming down the ring stand. 5) take 2 thermometers and hang on on each piece of string so that one is touching the water and the other is touching the sand. 6) measure how high the water and sand are going after a few minutes witha metric ruler. 7) use clock or stopwatch to time yourself when to measure the water and sand. 8) record your results in the packet. 9) After packet is complete, make a line graph showing the increase in height. 10) follow the instuctions and start the lab report. RESULTS: There were changes during the procedure. The water and sand levels increased a lot from what they originally were. The sand level increased more than the water did. Temperature with Lights On(C) Time(min).sand......water Start 1) 2 degrees C..... 2 degrees C 2)2.3 degree C.....2.2 degrees C 3) 2.4 degrees C....2.2 degrees C 4) 2.4 degrees C....2.2 degrees C 5) 2.4 degrees C....2.2 degrees C 6) 2.4 degrees C....2.2 degrees C 7) 2.4 degrees C....2.2 degrees C 8) 2.4 degrees C....2.3 degrees C 9) 2.4 degrres C....2.3 degrees C 10) 2.5 degrres C....2.3 degrees C 11) 2.5 degrees C....2.3 degrees C 12) 2.5 degrees C....2.3 degrees C 13) 2.5 degrees C....2.3 degrees C 14) 2.5 degrees C....2.3 degrees C 15) 2.6 degrees C....2.3 degrees C ^^SAND ^^WATER Temperature with Lights Off(C) Time(min) SAND.........WATER 16) 2.6 degrees C......2.3 degrees C 17) 2.6 degrees C......2.3 degrees C 18)2.6 degrees C......2.3 degrees C 19)2.6 degrees C......2.4 degrees C 20) 21) 22) 23) 24) 25) 26) 27) 28) 29) 30)^^ SAND..............^^WATER (MY GROUP DID NOT HAVE ENOUGH TIME TO FINISH THE DATA TABLE). CONCLUSION: During this lab, the water and sand temperature to get warmer and the level to to increase was expected. This is exactly what happened. The sand temperature was warmer and the level also increased more than the water. The surface layers of water and sand get heated directly by the sunlight. If none of this heat is conducted away, the sand will reach a higher temperature than water because of the lower specific heat. However, the heat does get conducted away. But again, since it is conducted away more slowly by the sand, than by the water, the surface of the sand stays hotter. This is why the sand is warmer than the water. The purpose of the lab was to if the water or sand got warmer. Also, to see which one increased in height more. This was a fun lab and we should do more of them.