Refraction can be deceptive, making objects appear differently than where they are actually situated. An oar in water will look bent due to refraction.
Pro Tip 2/3
Type of Medium Matters
Different materials cause light to refract in different ways; this is why objects look distorted under water. Glasses correct vision through controlled refraction.
Pro Tip 3/3
Natural Occurrence
Refraction occurs in everyday life, such as the bending of light creating rainbows. Sunsets appear elongated due to refraction in Earth's atmosphere.