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LampPro Tip 1/3
Intangible substancePlay
Understand that 'gas' refers to something you can't hold like solids. SlideThe helium gas inside balloons is lighter than air.
LampPro Tip 2/3
Invisible but realPlay
Remember gases may be invisible but they can have effects, like oxygen we breathe. SlideGas leaks can be dangerous even though you can't see them.
LampPro Tip 3/3
Environmental impactPlay
Some gases can contribute to environmental problems like global warming. SlideFactories can emit harmful gases into the atmosphere.