observations

2. experiments are observations that are made with tools.

3. controlled experiments are experiments done using standard and unchanged variables which will be used to compare with further experiments in which variables are changed

4. You can use baking soda, clay, and vinegar to build a model of a volcano.

5. you can represent an experiment or observation by using a model

Sorry I wasn’t any help!

2. experiments?

3. A controlled experiment is one in which one subject is left as “normal” in order to compare other results with the control

4. Vinegar

5. ??

We need to know what subject this is in to help any more

Try this ask your parents to read what you have written and maybe they can help!

Sorry!

1) .. a series of experiments.

2) results?

3) a controlled experiment is an experiment done using standard and unchanged variables which will be used to compare with further experiments in which variables are changed

4) wasn’t it vinegar or somin?

5) no idea

2. discovery

3 don’t know about one

4 vinegar

5 fact or fiction

sorry, i have no idea, good luck though!