A stoney lab is about measuring stone's mass by putting in a water. first we put water in beaker 400 ml then put the stone. How much that that water is more than 400, it is the stone's mass. Sample weight(g) volume(ml) density(g/ml) numbers 3 28.5 35 0.814 6 110 50 2.2 5 115 41 2.805 5 45.5 22 11.159 2 136 50 2.72 x 146.6 58 2.528 1 245.5 69.5 3.532
The example of impact of society on environment is cutting the trees, burning the forest and throwing garbage in the river. Oil spillsis let the petroleum hydrocarbon to environment. Nuclear power is using nuclear reaction that let the nuclear energy for making heat. Coal pollution is the pollution that made from coal such as mining coal. Acid rain is the rain that made from acid such as gas from car.
Cumulus is white fluffy clouds with usually means good weather.
Thin, Feather like clouds made of ice crystals high in the atmosphere.
Sheets of low, grey clouds that bring light snow or rain
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The best thing in Kru Gary class this year is the lab. I like it because Kru Gary's lab is interesting and fun. My favourite lab is the Physics lab. The thing that I plan to do in next year is to get higher score in essay part in additional science exam.
1. Describe how the ball rolls off the ramp at each height discuss the effect of bouncing or other factor Ans: The ball rolls faster in the ramp, the effect of bouncing is the higher that bucket is the slower the ball will go 20 cm: 4.5 seconds for 5 meters 40 cm: 6.5 seconds for 5 meters 60 cm: 7 seconds for 5 meters 80 cm: 9 seconds for 5 meters 2.Discuss what is the fastest speed reached and any factors that could improve this Ans: The fastest speed that the ball reached is when we roll the ball from the higher place to lower place. We can improve by using the longer bucket to make it have more gravity so the ball will be faster. 3.Does the ball travel in a straight line, why or why not? Ans: In the lab the ball doesn't travel in the straight line and I think it is because the floor is not exactly straight or we don't roll the ball in straight line.