Learn about the life cycle of insects. This video explains how caterpillars go through a complete metamorphosis to become a butterfly.

This science video explains the stages in the life cycle of a monarch butterfly.

Let's examine bird beak anatomy. Which bird beak can crush seeds – a Heron's or a Cardinal's? Watch the animation in the video to answer this question.

This animation shows several stages in a butterfly's life cycle. Pause the video between each stage to compare stages and make predictions.

This science video demonstrates how a graduated cylinder can help scientists observe and measure the volume of a liquid.