ÔùÖ Digestion ÔùÅ Where does saliva come from? ÔùÅ Why doesn't food enter the windpipe? ÔùÅ Why doesn't the stomach digest itself? ÔùÅ What does the pancreas do? ÔùÅ What does the liver do? ÔùÅ What does the small intestine do? ÔùÅ What is the large intestine's job? ÔùÅ How does digestion work? ÔùÅ What do the kidneys do?rnrnÔùÖ The Nervous System ÔùÅ How doe…
ÔùÖ the Mysteries of Human Life ÔùÅ What is the human body made of? ÔùÅ How are new human cells formed? ÔùÅ What is DNA and what does it do? ÔùÅ How does human life begin? ÔùÅ How are egg and sperm cells made? ÔùÅ What is fertilization? ÔùÅ How does a baby grow in the womb? ÔùÅ How does a foetus get its food? ÔùÅ Why are some people born twins? ÔùÅ How does the …
ÔùÖ Defence Mechanisms ÔùÅ Why do some animals imitate their surroundings? ÔùÅ When is a bee not a bee? ÔùÅ Why do tree frogs change colour? ÔùÅ Why do some animals change colour with the seasons? ÔùÅ Why do springboks jump? ÔùÅ Why does a rattlesnake make noise? ÔùÅ What is the purpose of eyespots? ÔùÅ Why are poisonous frogs so bright? ÔùÅ Why do some harmless bu…
ÔùÖ Feeding Patterns ÔùÅ How does a paramecium feed itself? ÔùÅ How do flies locate food? ÔùÅ How do mosquitoes locate blood? ÔùÅ How do ants and aphids use each other? ÔùÅ Why do snakes flick out their tongues? ÔùÅ Why do woodpeckers peck at trees? ÔùÅ How does a platypus find food? ÔùÅ Why do some fish have whiskers? ÔùÅ How do these creatures help each other? Ô…
ÔùÖ Adapting to Life on the Earth ÔùÅ What determines a turtle's gender? ÔùÅ Where do seabirds live? ÔùÅ How do mangrove trees survive in salt water ÔùÅ What lives on the forest floor? ÔùÅ Why do bats live in caves? ÔùÅ Where do cave dwellers find food? ÔùÅ How does the cave climate affect where cave dwellers live? ÔùÅ What plants grow in Antarctica? ÔùÅ What crea…
ÔùÖ Patterns of Life ÔùÅ Why are some animals unique to the Gal├ípagos? ÔùÅ Do penguins live at the North Pole? ÔùÅ Why are the animals of India and Africa so similar? ÔùÅ How do reptiles survive in cold climates? ÔùÅ Why are tapirs found only in South America and Asia? ÔùÅ Where do marsupials live? ÔùÅ What early primates lived in North America? ÔùÅ How do the ani…
ÔùÖ Life Cycles ÔùÅ How do cabbage whites select mates? ÔùÅ Why do some beetles have horns? ÔùÅ How do dragonflies mate? ÔùÅ Do praying mantises eat their mates? ÔùÅ What is gift giving among insects? ÔùÅ Why do mosquitoes suck blood? ÔùÅ How do honeybees reproduce? ÔùÅ How are aphids born? ÔùÅ Do insects care for their young? ÔùÅ How do woodlice tend their youn…
ÔùÖ The Functional Body Form ÔùÅ What are insects? ÔùÅ Do insects have hearts and brains? ÔùÅ How do insects breathe? ÔùÅ How does a thousand-legger walk? ÔùÅ How do insects fly? ÔùÅ How can a flea jump so high? ÔùÅ How can insects walk on water? ÔùÅ How do flies walk on the ceiling? ÔùÅ How do insects see? ÔùÅ What can insects hear? ÔùÅ What are antennae use…
ÔùÖ The Search for Food ÔùÅ Do fish have favourite foods? ÔùÅ How do fish capture plankton? ÔùÅ What is an archerfish? ÔùÅ Do fish go fishing? ÔùÅ How do deep-sea fish catch prey? ÔùÅ How do dolphins and whales hunt? ÔùÅ What do blue whales eat? ÔùÅ Can shellfish attack fish?rnrnÔùÖ Underwater Senses ÔùÅ How does the sense of smell work? ÔùÅ How do fish see? …
ÔùÖ The Diversity of Aquatic Animals ÔùÅ What is a fish? ÔùÅ How do fish breathe underwater? ÔùÅ Do fish drink water? ÔùÅ What is a swim bladder? ÔùÅ Are all fish cold-blooded? ÔùÅ Can fish freeze to death? ÔùÅ How do different animals swim? ÔùÅ Why can swordfish swim so fast? ÔùÅ How do fish survive ocean pressures? ÔùÅ Why do some fish glow? ÔùÅ Why do lumi…