composition

"Up in the garden, the world is full of green--leaves and sprouts, growing vegetables, ripening fruit. But down in the dirt there is a busy world of earthworms digging, snakes hunting, skunks burrowing, and all the other animals that make a garden their home. In this exuberant book, discover the wonder and activity that lie hidden between the stalks, under the shade of leaves... and down in the dirt"--Jacket flap.

Examines the scientific reasons the ocean and some lakes have salt water. Includes a related science experiment, a glossary with pictures, resources for further information, and color photographs.

The great African-American chemist George Washington Carver changed how we see not only peanuts, but the opportunities for black people in science.

Describes the good and bad results of eating more than one hundred seventy foods, with nutritional tips for more than one hundred health conditions, an overview of nutrition and food safety, and includes special features on the benefits of vitamin D, the dangers of mixing food and medicine, and more.

Discusses soil, what lives in it, what it is made of, and how to keep it healthy.

Explains how to read food labels, and how to use them to choose the best foods to eat.

A collection of essays that explore the physics and chemistry behind cooking.

Introduces recipes and fun science facts, including black hole swallow-ups, munch on molecules with atomic popcorn balls, and invisible ink snack pockets.

Watch gravity "swallow up" sausage bits in a muffin; compare the hardness of ingredients in a sedimentary pizza lasagna, and much more in these six edible science projects.

Describes common food additives telling which are harmful, safe, or not adequately tested and rates the nutritive value of foods.