Why red is used as a danger signal? plus 9 more videos.. #aumsum #kids #science #education #children

Speed of sound - Why does sound travel faster in summer than in winter? Ignition Temperature - Why does a match light when you strike it? Latent heat of vaporization - Why do wet clothes feel cold? Respiration - Why should we not overwater potted plants? Transpiration - Why do cacti have spines? Nerves - Why don t we feel pain when we cut our hair? Wavelength - Why red is used as a danger signal? Bad Conductors of Heat - Why are two thin blankets warmer than one thick blanket? Breathing - Why do we get hiccups? Latent Heat of Vaporization - Why does steam cause more severe burns than boiling water?