Experiment of December 19, 2024:

The time to submit an answer is over. You can now view the solution of the experiment.

Solution video:

Note: Please log-on first to gain jokers for viewing the solutions.

You need to view the complete video to collect additional jokers. Your joker status is shown on the results page.

Experiment:

Question:

What happens to the water level in the straw when he slowly squeezes the balloon?

A) The water level rises.

B) The water level drops.

C) The water level remains unchanged.

D) The water level shoots out of the top of the glass tube.