1) biggest planet a) mercury b) earth c) jupiter d) sun e) neptune f) moon 2) closest planet to the sun a) earth b) venus c) milky way d) mercury e) jupiter f) saturn 3) what is the lagest dessert in the world a) sahara b) amazon c) antartica 4) what force keeps earth in orbit a) air b) gravity c) magnets d) carbon dioxide 5) biggest organ in human body a) heart b) lungs c) skin d) brain 6) how many elements in the pireodic table a) 3008 b) 267 c) 118 d) 648 e) 123 f) 111 7) what grass spicies is the tallest a) grass b) trees c) bamboo d) hay e) leaves f) wood

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