Why Is Milk White?: & 200 Other Curious Chemistry Questions
8 Chemistry in the World 143 Why is there salt in the ocean 143 What happens when you play with liquid nitrogen 144 Why do some chemicals stain your hands 145 What happens when you put your hand in an acid 146 What happens when you put a leaf in an acid 147 What do electrons do 148 How do we get electricity 149 How do you use chemistry to make a battery 149 How do solar panels work 150 How does a Van de Graaff generator work 151 What does water have to do with chemistry 153 What are atoms 154 What chemicals do you find in everyday life 154 What does the periodic table of elements have to do with chemistry 155 How do elements get their names 156 How does gas cook our food and heat our homes 157 Why is lotion so oily 158 Why is oil so oily 158 Why does air leak out of a balloon 159 What makes an acid not good 160 Project Butane Balloon 161 What is matter 165 What do gluons have to do with chemistry 166 What is hydrogen sulfate 166 What is the strongest kind of acid 168 What does hydrogen chloride do 169 Why does snow melt 169 Why do people put salt on icy roads 170 Why does ice float 171 Does ice weigh more than water 171
How is organic chemistry different from regular chemistry 172 What is biochemistry 173 How is biochemistry related to regular chemistry 173 How many types of chemistry are there 175 Why are there so many varieties in chemistry 175 What are chemical bonds 176 How many types of bonds are in chemistry 176 How long has chemistry been around 178 Can you change lead into gold 178 What is the difference between radiation and radioactivity 179 How do they make petroleum into jelly 180 Why do chemicals foam up 181 What is hydrogen peroxide 182 What is a soda can made out of 183 What is the difference between Fahrenheit and Celsius 184 What makes bridges so strong 185 Why do some things dissolve in water and others don’t 185 What is plastic made of 186 Project Extracting Iodine 187 Project Fun with Boron 192 9 Chemists 199 What are some things chemists do 199 How do people today use chemistry and science in How are chemists different from and similar to scientists 201 Project Latent Fingerprints 202 their jobs 200
How is physics different from chemistry 206 How are technology and chemistry different and alike 207 What does math have to do with chemistry 207 What chemicals would you see if you were in a chemistry lab 208 Project Copper Catalyst 209 Why are chemists so serious about their work 212 How do you use chemistry in a pharmacy 212 Project Hollow Pennies 213 How do doctors use chemistry in their work 216 How is chemistry used in cooking 217 10 Food 219 Why are some foods made with chemicals 219 Why do we need calcium 221 Why do we need to eat food 222 How does chemistry keep your food safe 222 Why does adding oils to cooking water keep it from boiling over 224 Why do onions make you cry 225 How do you make rock candy 226 Why does salt have a texture 227 Why is chocolate a solid 228 Why is peanut butter creamy 231 Are there chemicals in artificial flavors 231 What makes soda so fizzy 234 Project Dancing Raisins 235 Why do people tap on soda cans before they open them 238 What are all of the chemicals in soda 238 Does bottled water go bad 239 What makes cookies rise 240
Why does a white of an egg turn white when you cook it 241 Why does jelly feel squishy 241 How does a fruit get ripe 242 Why is honey so sticky 243 Why does butter melt 244 How do you make fake butter 244 What gives people energy 245 Why do some medicines have flavor and others don’t 246 Why is bubble gum stretchy 247 Why is there salt in almost everything you eat 247 Why does sugar make you hyper 248 Why do you get cavities when you eat too much sugar 248 Glossary 251
