Do you know who we are? Wait, Lily, maybe they don't who we are. Do you think it could be the voice? - [Lily] Or is it because we're behind this curtain? - [Omar] Should we maybe- - [Lily] Yeah. - Hey ...

Start a discussion with your child about shadows. Ask, "What can you tell me about your shadow?" Responses might include that shadows are attached to feet, resemble body shapes, and that they're ...

If you suspend a Rubik’s Cube near the corner of a room and shine lights at its exposed faces, it will cast square shadows on two walls and the floor. A real-world Rubik’s Cube has a gadget at its ...