Equipment: A pail of water. What it does: The pail is swung in a full circle and the water does not fall out when the pail is upside down. Concepts Demonstrated: Forces in circular motion. You may use ...

Worms are hermaphrodite, which means they have both male and female reproductive cells. They do need another worm to reproduce with though. They lay their eggs, which hatch as little worms.

In the middle of 2020, Alex Loukas deliberately infected himself with intestinal worms. The procedure was pretty straightforward: he used a Band-Aid to press a few larvae of the New World hookworm ...