UNIT 1 ARE YOU LEFT-HANDED 1
UNIT 2 TRAFFIC LIGHTS 10
UNIT 3 MUSIC OR NOISE 20
UNIT 4 DO ANIMALS COMMUNICATE 28
UNIT 5 FROM CATTLE TO PAPER MONEY 39
UNIT 6 GESTURES 49
UNIT 7 HOW DO BIRDS FIND THEIR WAY 62
UNIT 8 THE AM ERICANS 74
UNIT 9 LIVING TOGE THER 83
UNIT 10 EMMELINE PANKHURST 93
UNIT 11 FOOD 102
UNIT 12 NEW METHODS IN EDUCATION 112
VOCABULARY 119