Froggy Jumps Our body.Online version Natural science - unit 3 revision. by L. R. 1 The organs of hearing are... a the tongue. b the eyes. c the ears. 2 We use our tongue to identify... a different sounds. b different flavours. c different smells. 3 The organs of sight are... a the eyes. b the ears. c the nose. 4 The organ of touch is the nose. a False. b True. c I don't know. 5 Our skin identifies... a loud, quiet, high and low sounds. b hot, cold, smooth, hard, etc. c colour, shape, size, and distance. 6 The organ of taste is... a the tongue. b the nose. c the skin. 7 It's made up of the brain, the spinal cord and the nerves. a The circulatory system. b The locomotor system. c The nervous system. 8 It receives messages from our five senses and gives instructions. a Nerves. b Brain. c Spinal cord. 9 They are connected to the brain by the spinal cord. a Locomotor system. b Skin. c Nerves. 10 It makes our body move. a Locomotor system. b Nervious system. c Circulatory system 11 Where two or more bones meet. a Muscles. b Tendons. c Joints. 12 They attach muscles to the bones. a Tendons. b Joints. c Glue. 13 It carries nutrients and oxygen around the body. a Digestive system. b Respiratory system. c Circulatory system. 14 The circulatory system is made up of... a heart and blood. b heart, blood, blood vessels and brain. c heart, blood and blood vessels. 15 The blood travels in thin tubes called... a vessels. b blood vessels. c bronchi. 16 It pumps blood to every part of the body. a Brain. b Blood vessels. c Heart. 17 It picks up nutrients and oxygen and drops off carbon dioxide and waste products. a Nerves. b Lungs. c Blood. 18 Small thump every every time your heart beats. a A beat. b A bomb. c A pulse. 19 Our circulatory system is a part of the process of... a reproduction. b interaction. c nutrition. 20 Our nervous system and our locomotor system are part of the process of... a reproduction. b nutrition. c interaction. 21 The sense used to identify flavours. a Taste. b Sight. c Touch. 22 The largest organ in our body. a hair. b Blood vessels. c Skin. 23 The sense used to identify colours. a Sight. b Smell. c Hearing. 24 Our tears protect our eyes. a No way! b False. c True. 25 The ear has four parts. a True. b False. c I don't know. 26 It's is inside the skull. a Brain. b Heart. c Trachea. 27 Oxygen enters our blood through the... a respiratory system. b carbon dioxide. c circulatory system. 28 Nostrils, trachea, bronchi and lungs make up the... a nervous system. b digestive system. c respiratory system. 29 The nose has two holes called... a little holes. b nostrils. c bronchi. 30 The trachea divides into two smaller tubes called... a lungs. b bronchi. c nostrils. 31 The lungs are protected by... a our ribs. b our skull. c our tendons. 32 The carbon dioxide leaves our body when we... a breathe out. b breathe in. c eat. 33 The nose warms the air and cleans it. a False. b True. c No way! 34 Our reproductive system allows us to have... a puppies. b parents. c babies. 35 The sperm in the male reproductive are kept in the... a ovaries. b testicles. c uterus. 36 Men and women have the same reproductive systems. a False. b True. c Maybe. 37 A fertilised egg goes to the a uterus. b stomach. c lungs. 38 A human fertilised egg changes into... a a chicken. b a baby. c an embryo. 39 The eggs in the female reproductive system are kept in the... a ovaries. b testicles. c uterus. 40 The air goes down the bronchi into... a two lungs. b one lung. c the trachea.