Gravity
By Lisa Hill

The book i read was called gravity by Lisa Hill. As i read the book i thought about how gravity affected me myself. We talked about Mass and Gravity how if more mass is in an object, it will feel more gravity. THen we talked about Gravity and distance how they help each other. Earths ground is roughly 3,963 miles. Did you know that the planets take longer or shorter for a revolution period the time for it to go around the sun. I think that's really cool how gravity can do so much. The closer the planet is to the sun the shorter the planet takes to go around the sun.So Mercury takes about 87.97 days to complete it circulation around the sun because it is the closests. Compared to Neptune which takes about 164.79 days because it is farther from the sun. We also talked about an extraordinary man named Isaac Newton. As a child his family and him lived on a farm in England. When Newton was 17 his uncle told his mom that he should go to college and that's just what Newton did. He went to Trinity College in Cambridge. The school had to close for about 2 years so Newton went home and used his time to teach himself astronomy,math,and even physics. Then we talked about Galileo he lived from 1564 to 1642.The teachers taught him that heavier objects fell faster than lighter objects. Well Galileo wanted to prove them wrong or right so this is what people that he did he climbed the leaning tower of Pisa. He dropped 2 balls from the tower and they both landed at the same time. Galileo heard about this instrument that let you see stuff in space. So he made one he set glass lenses inside an old organ pipe tube. Then they talked about how the gravity made the heart work. Gravity helps the blood get around the body. In space where there is no gravity they have to do workouts to keep their heart working hard.Also they talked about warp speed you would have to go faster than light. You would have to go 669 million miles per hour to reach warp speed.

I thought this book was alright. I think that it was very not entertaining. The people that would like this if thay like science. If they like space and if they like reading. I would give it 2 stars. So if you read it you should be intp science and space.
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