What is an experimental design and annotated bibliographies? And what’s a good environmental science experiment? I know it’s a dumb question but it’s worth a shot

Experimental design means planning a set of procedures to investigate a relationship between variables, or experimental design refers to how participants are allocated to the different groups in an experiment. The types of design include repeated-measures, independent-groups, and matched pairs design.

Annotated bibliography provides specific information about each source you've used. As a researcher you have become an expert on your topic: you have the ability to explain the content of your sources, assess the usefulness, and share this information with others who may be less familiar with them.

Annotated bibliography is a list of citations to books, articles and documents.

Good environmental science experiments are;

1.Water science fair projects.

2. Air quality Science fair projects

3. Climate change Science fair projects

4. Solid waste recycling Science fair projects.

Explanation:

Hope it helps.

i think it is the 2nd one