Science 1
Air sacs
– Small bulb shapes structures in the lungs. Oxygen moves through the walls of the sacs into the blood
Alimentary cana
– The main part of the digestive system. It serves as passageway for food movement in the body.
Alveoli
–A cluster of little air sacs found in the lungs.
Artery(ies)
– Largest blood vessels of the body. Arteries carry blood away from the heart.
Atom
– The smallest particle of an element.
Atrium
– The upper chamber of the heart which receives blood.
Bile
–A gastric juice produced by the liver.
Birth rate
–Tells how fast babies are born.
Blood
–A tissue fluid of the body, also called the red river of life.
Blood vessels
– Pathways through which the blood carries nutrients to all parts of the body.
Brittleness
–The ability of a material to be broken easily.
Capillary(ies)
– Tiniest blood vessels. Also connects arteries and veins.
Celsius scale
– A common temperature scale in which the freezing point of water is at 0°C and the boiling point is at 100°C.
Chemical energy Energy stored in matter.
Circuit
– A path in which electricity moves.
Circulation
– A process by which blood is carried to all part of the body.
Climate
– The condition of the atmosphere over a long period of time.
Closed circuit
–A circuit which has all the parts connected so that electricity keeps on flowing; also called complete circuit.
Commensalim
– A kind of relationship wherein one organism is benefited and the other is unaffected.
Community
– A place where organisms live and interact.
Competition
– A kind of relationship wherein two or more organisms compete for food, water, shelter, and other things in order to survive.
Compound
– A material with two or more elements that are chemically combined.
Constellation
– A group of stars.
Contour farming
– Plowing the soil across gentle slopes.
Current electricity
– Electricity in motion.
Death rate
– Tells how fast people are dying.
Decibel
– A unit of measurement for the intensity of sound.
Decomposer
– One who feeds and breaks down dead bodies of organisms.
Density
– The amount of matter present in a given volume.
Digestion
– A process by which food is broken down and used up by all parts of the body.
Digestive glands
– One of the two main partd of the digestive system. They include the salivary glands, liver, pancreas, and gastric glands of the small intestine.
Ductility
– Ability of a material to be drawn into fine wires.
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