Presents information about minerals, describing where they are found, their division into different families, how they change over time, their practical uses, and why they are important.
What happens when we cool a liquid? What is temperature? Read this book to learn about ways of cooling materials and how materials change as they cool.
Explains what cold is and how it is measured, discusses how materials sometimes change their properties when they are cooled, and looks at the effects of cooling and freezing on liquids and gases.
Which materials stretch? Is it easier to change soft or hard materials? What happens when we try to bend brittle objects? Read 'Changing Shape' to learn about the different ways we can change a materi
"What makes a material melt? Why are there bubbles in boiling water? What are some sources of heat? Read 'Heating' to learn about the different ways we can heat materials and how heat can change mater
"What happens when we cool a liquid? What is temperature? What causes condensation? Read 'Cooling' to learn about the different ways we can cool materials and how materials can change as they cool. Fi
Explains how weather and climate can be measured using graphs and charts and answers such questions as "What is climate change," "How deep is Earth's atmosphere," and "What does a hygrometer measure."
Explains how weather and climate can be measured using graphs and charts and answers such questions as "What is climate change," "How deep is Earth's atmosphere," and "What does a hygrometer measure."
Describes how liquids, solids, and gases can change by such processes as heating, melting, and stirring, and includes simple experiments to demonstrate chemical reactions.
Presents an introduction to mixing and separating, describing how materials can change into something else by separating the pieces of one material or mixing two materials together; and includes simpl
