it should be:
Code:
SELECT tblProduct.[ProductID], tblProduct.[CompanyID], tblProduct.[ProductType],
tblProduct.[Price], tblProduct.[Unit], tblProduct.[Color], tblProduct.[Material],
tblProduct.[Size], tblProduct.[WeightInLbs], tblProduct.[DiscountOffered]
FROM tblProduct
WHERE (((tblProduct.[WeightInLbs])>100))
AND tblProduct.Color IN
(Select tblProduct.Color
FROM tblProduct
WHERE tblProduct.Color="Green");
however, if the colors are in a different table, the query will be different.
furthermore, if you're a student and the product colors are ALSO in the products table, tell your instructor that this assignment task is aimed towards teaching you the wrong type of query skills.