WehavelearntabouttheUniversethrougheasyexperiments. First, weweretaughtaboutthe Big BangTheory. Weused a balloon and glittertoexplainhowtheuniverseexpands.
Then, weweretoldaboutsomeplanets. Westartedwith Venus, thesecondclosesttotheSun. Itsatmosphereismade up of 97% carbondioxide. In thenextexperimentweblew up a balloonwithout air! Wemixedbaking soda and vinegar.
AfterthatwelearntaboutMars. It has thelargestvolcano in the Solar System, theOlympus Mons. Mars has ice caps at bothitsnorth and southpoles. Wewereshowndry ice!! Dry ice isfrozencarbondioxide. Look!