将下列单词按所属类别归类。

German , tiny, sun , cotton , steel , earth , aloud, Spanish , astronaut , scientist ,

deaf, weak, Mars , satellite , plastic , Russian ,French , wood ,inventor , explorer .

1.职业名称：_______ _______ _______ _______ 

2.语言种类：_______ _______ _______ _______ 

3.原材料：_______ _______ _______ _______ 

4.星球名称：_______ _______ _______ _______

5.特征状态：_______ _______ _______ _______