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Fossil Cast and Mold Worksheet

Name____________________________

Fossil Cast and Mold Worksheet

In the table, write the name of the object you are using. Then put an x under the column for the quality of the mold and cast that object made.

Mold Quality

Object name or description	Soft or hard	None	Poor	Good	Excellent
1._________________________	__________	_____	_____	_____	_____
2._________________________	__________	_____	_____	_____	_____
3._________________________	__________	_____	_____	_____	_____
4._________________________	__________	_____	_____	_____	_____
5._________________________	__________	_____	_____	_____	_____

Cast Quality

Object name or description	Soft or hard	None	Poor	Good	Excellent
1._________________________	__________	_____	_____	_____	_____
2._________________________	__________	_____	_____	_____	_____
3._________________________	__________	_____	_____	_____	_____
4._________________________	__________	_____	_____	_____	_____
5._________________________	__________	_____	_____	_____	_____

 

1). What is a cast in your own words?

 

2). What is a mold in your own words?

 

3). Which of the objects (name or description) you tested make the best mold fossils?

 

4). Which of the objects (name or description) you tested make the best cast fossils?

 

5). Do hard or soft objects make the best casts or mold fossils?

 

6). Imagine a dead animal or plant that was buried in the mud. What parts of that animal or plant might make good impressions based on your experiment?