Hardness
Rebecca Kraft RectorSome objects can be scratched or dented easily. Others can take a beating and still look as good as new. This may be one sign of hardness. This accessible narrative introduces basic concepts about the property of hardness of matter. Readers learn how to identify hardness through senses and tests, as well as how hardness may change. A hands-on activity gives readers a chance to experience the concepts in action. Fast facts and vivid images offer additional nuggets of information. This volume supports students' ability to "classify different kinds of materials by their observable properties" in second grade as specified in the Next Generation Science Standards.
年:
2019
出版社:
Enslow Publishing, LLC
语言:
english
ISBN 10:
1978509103
ISBN 13:
9781978509108
系列:
Let's Learn About Matter
文件:
EPUB, 10.27 MB
IPFS:
,
english, 2019