History ~ First Civilizations
Usborne Encyclopedia of World History (Internet Linked) pages 108-113
Play the Royal Game of Ur
Geography ~ Maps and Globes
Usborne Encyclopedia of World Geography with Complete World Atlas (Internet Linked) pages 248-249
How well do you know the continents? Play this game to find out!
This would also be a good time to start playing some board games, there are some great ones out there for geography, we love the Carmen SanDiego games.
Science ~ Planets
Usborne Science Encyclopedia (Internet Linked) pages 154-157, 164-165, 168-171