Keeping Fit: Body Systems
This series offers an exciting apporach to understanding and investigation. Each book helps readers conduct their own experiments and activities, and to learn more about the world around them. Each title includes clear instructions and illustrations, fascinating facts and stunning photographs.
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20 paces activity alveoli ball basketball Bend and stretch bicycle blood flows blood travels blood vessels bones bounce bronchiole called capillaries Carbohydrates carbon dioxide cartilage chemical or food chest circle cold contracts cool dehydration elastic fit and healthy flexible food chemical food group Gentle hand happens inside heart and lungs heart pumps help your body hips Hold your breath hula hoop interval training jelly jogging jump junk foods keep fit knee lactic acid look lower arm measure your pulse minutes move movement of blood need any equipment nutrient oxygen and energy protective clothing Proteins pulse rate pumps blood red blood cells Repeat five resting rate right arm skeleton skin slowly bend soccer Steps to follow Taking drugs tape measure tennis thigh tiny tubes turn the rope type of food upper arm USA Gymnastics USA Swimming vitamin walk waste gas windpipe wrist