Introduces the concept of weight, discussing units of weight, methods of measuring weight, and the importance of weight measurement for a variety of uses.

Tell Me How Fast It Goes

by Shirley Willis

Published 1 September 1999



Tell Me How Ships Float

by Shirley Willis

Published 1 September 1999


Tell Me Why the Moon Changes

by Shirley Willis

Published 1 September 1999

Tell Me What the Time Is

by Shirley Willis

Published 1 September 1999

Tell Me How Far It Is

by Shirley Willis

Published 1 September 1999
Introduces the concepts of distance and length, discussing how they are measured, why measuring is important, units of measure, perspective, and the reasons for measuring a variety of objects and distances.

Set out on a scientific adventure with the Whiz Kids! Children will love learning about basic scientific concepts such as weight and speed in these distinctive information books, which combine charming picture-book-style illustrations of the intrepid Whiz kids with accessible and fact-packed text and simple, safe experiments readers can try at home.

Set out on a scientific adventure with the Whiz Kids! Children will love learning about basic scientific concepts such as the solar system and weather in these distinctive information books, which combine charming picture-book-style illustrations of the intrepid Whiz kids with accessible and fact-packed text and simple, safe experiments readers can try at home.

Tell Me Why Rain Is Wet

by Shirley Willis

Published 1 September 1999

Tell Me Why Planes Have Wings

by Shirley Willis

Published 1 September 1999
Text and simple illustrations provide explanations of the principles of flight.