Mrs.Mayo's 2nd grade class

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Science Unit A, Chapter 1:  Plants Grow and Change

living - things that need food, water, and air ot live and grow

nonliving - things that do not need food, water, and air and do not grow

nutrients - minerals from the soil

seed coat - covering that protects a seed

germinate - begin to grow, as seeds do

seedling - young plant that grows from a seed

cactus - desert plant that can store water in its stems

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Unit A, Chapter 2: Animals Grow and Change

mammal - animal that has hair or fur, the female of which feeds mild from 
her body to her young

reptile - animal that is covered with scales and has rough, dry skin

amphibian - animal that has smooth, moist skin and lives both in water and 
on land

insect - animal that has three body parts and six legs

life cycle - parts or stages of an animal's life

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Science Vocabulary
Unit A3: People Grow and Change

permanent teeth - adult teeth that take the place of baby teeth

skeleton - gones in a body that give it shape

muscles - body parts under the skin that produce movement

heart - muscle that pumps blood

lungs - body parts that help you breathe air

heart rate - how fast or slowly a heart beats

digest - break down food in the body

saliva - fluid in a mouth that helps break down food

esophagus - tube that takes food from the mouth to the stomach

stomach - body part where food is broken down

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