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21) What is gravity?
Author
Series
Publisher
Field Publications
Pub. Date
c1986
Language
English
Description
Explains in simple terms the concept of gravity.
23) What is a wave?
Author
Publisher
Field Publications
Pub. Date
c1986
Language
English
Description
A description, in simple terms, of what a wave is and how it is caused.
2006-513-07
25) Why is it cold?
Author
Publisher
Field Publications
Pub. Date
c1987
Language
English
Description
Explains in simple terms the effects of cold and temperature.
27) Why is it hot?
Author
Series
Publisher
Field Publications
Pub. Date
c1987
Language
English
Description
Explains in simple terms the effects of heat and temperature.
28) What is a cloud?
Author
Publisher
Field Publications
Pub. Date
c1986
Language
English
Description
A description in simple terms of what a cloud is and how one is made.
2006-506-07
29) What is a star?
Author
Series
Publisher
Field Publicataions
Pub. Date
c1988
Language
English
Description
Explains in simple terms what is a star?
