I used a Density Column to show that olives are denser than cherry tomatoes. To follow proper scientific procedure, the experiment needs to be checked by repetition and replication. What is the difference between repetition and replication?

1. Repetition means that I do the same experiment again. Replication means that other people do exactly the same experiment again.

   Yes! To confirm your results it is important for you to repeat exactly the same experiment again (repetition) and then for other people to do exactly the same experiment again. (replication). If any of the results from repetition or replication are different from your original data, your original results are NOT confirmed, and you need to do more work.

2. Repetition means that I do the same experiment again. Replication means that I do the experiment again after correcting errors.

   No. Replication is when other people to do exactly the same experiment.

3. Repetition means that I do the same experiment again. Replication means that other people try to improve on my experiment.

   No. Replication is when other people to do exactly the same experiment.

4. Repetition means that I do the experiment again after correcting errors.. Replication means that other people do exactly the same experiment again.

   No. Repetition means that I do the same experiment again.

Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.