Enslow Pub Inc | 2009 | 132 páginas | rar - pdf | 3,9 Mb
link (password: matav)
Math and physics often go hand-in-hand. Math and measurements have even played a big role in scientific discovery since ancient times. Use math and measurement as the tools to successfully complete physical science experiments such as figuring out how big a raindrop is, discovering the first units of measure, and more! Many experiments include ideas students can use for their science fair.
Contents
Introduction ........ 7
The Scientific Method........ 8
Science Fairs ...... 10
Safety First .... 11
Indicates experiments that offer ideas for science fair projects.
CHAPTER 1 Measuring and units of Measure 13
1.1 The First Units of Measure ...... 15
1.2 Your Own Measuring System ...... 18
1.3 Metric Measure...... 24
1.4 Comparing Standard Units of Measure.... 27
1.5 Converting Units Within and Between Measuring Systems .. 30
1.6 Body Parts and Ratios ..... 33
CHAPTER 2 Math and science in Many Places 35
2.1 Great Circles: Measuring on a Sphere and Scaling .... 36
2.2 Testing Apples: Measuring, Averaging, Finding Volumes... 37
2.3 Volume, Mass, and Density ... 41
2.4 What Is the Effect of Surface Area on Heat Loss? .... 45
2.5 The Golden Ratio ........ 51
CHAPTER 3 Measuring Areas and Volumes 57
3.1 Area and Acres .... 61
3.2 Area of a Triangle ..... 63
3.3 Circles: Their Diameters, Circumferences, and Areas ...... 64
3.4 Cylinders: Their Areas and Volumes ... 70
3.5 Cones: Their Surface Areas and Volumes ....... 72
CHAPTER 4 Math, Temperature, and heat 79
4.1 Temperature Scales: Graphs, Conversions ...... 80
4.2 Measuring the Heat Delivered by a Heater ...... 84
4.3 Measuring the Heat to Boil Water (Heat of Vaporization).... 88
4.4 Measuring the Heat to Melt Ice (Heat of Fusion).... 92
4.5 Measuring Specific Heat ......... 94
4.6 Finding Specific Heat by Mixing ....... 97
CHAPTER 5 indirect Measurements and estimation 101
5.1 An Indirect Measurement of Thickness....... 102
5.2 An Indirect Measurement of Height..... 104
5.3 Using a Known Height to Measure Distance Indirectly..... 111
5.4 Scaling: Measuring Long Distances With Maps . 113
5.5 How Big Is a Raindrop? .... 115
5.6 Indirect Measurements of Mass ..... 120
5.7 How to Measure Distance With Your Bik.... 122
Appendix: Conversions Between U.S. Customary and Metric Units ... 123
Further Reading..... 124
Internet Addresses ...... 125
Index ..... 126
