Insanely Fun DIY Science Experiments at Home with Physics Girl

Diana from Physics Girl presents a series of fun physics experiments using household items. The video covers experiments with lasers and water to identify mystery liquids, explores density with ice cubes in oil, demonstrates the creation of hot ice using sodium acetate, and visualizes sound waves with lasers and mirrors. Each experiment is explained with scientific principles, encouraging viewers to try them safely at home.

What is the mystery liquid that glows under a violet laser?

• Plain water

• Tonic water

• Saltwater

• Sugar solution

Which of the following is considered the coolest use of lasers?

• Cooling and controlling individual atoms

• Detecting gravitational waves

• Laser tag

• Measuring the distance to the moon

What process causes tonic water to glow under ultraviolet light?

• Refraction

• Fluorescence

• Diffusion

• Reflection

What happens to an ice cube when placed in a container with two types of oil?

• It stops in the middle

• It floats on top

• It sinks to the bottom

• It explodes

Which material is the densest naturally found on Earth?

• Osmium

• Lead

• Gold

• Platinum

What is the purpose of the balloon in the sound wave visualization experiment?

• To reflect light

• To act as a drum membrane

• To amplify sound

• To absorb vibrations

What effect does a diffraction grating have on a laser beam?

• It amplifies the beam's intensity

• It changes the beam's color

• It splits the beam into multiple dots

• It focuses the beam