ABC BOOK OF SCICENCE

A

• Animlia
• DEFINITION:PART OF CLASSIFICATION SYSTEM THAT DIVIDES ALL LIVING THINGS INTO SIX KINGDOMS

B

• Barometer
• AN INSTRUMENT THAT MEASURES AIR PRESSURE

C

• Cell
• THE SMALLEST UNIT THAT IS ABLE TO PERFORM THE BASIC FUNCTIONS OF LIFE.

D

• Dew point
• The temperature at which air with a given amount of water vapor will reach saturation.

E

• Exoskeleton
• The strong flexible outer covering of some invertebrate animals such as arthropods

F

• Fungi
• part of a classification system that divides all living things into six kingdoms

G

• Generator
• A device that converts kinetic energy ,or the energy of motion into eletrical energy

H

• Hurricane
• A tropical low-pressure system with sustained winds of 120 kilometers per hour (74 mi/h) or more

I

• Insects
• An arthropod with three body segments,six legs,two antennae,and compound eyes

J

• Jet stream
• A wind that flows in the upper tropospher from west to east Over vast distances at great speeds.

K

• Kinetic energy
• The energy of motions .A moving object has the most kinetic energy

L

• Lever
• A solid bar that rotates,or turns around a fixed point (fulcrum)

M

• Magnet
• An object that attracts certain other materials,particularly iron and steel.

N

• Nucleus
• the central and most important part of an object, movement, forming its basis for its activity and growth

O

• Organism
• An individual living thing,made up of one or many cells,that is capable of growing and reproducing.

P

• Pulley
• A wheel with a grooved rim that turns on an axle.

Q

• Quantitative
• relating to, measuring, or measured by the quantity of something rather than its quality.

R

• Reptile
• A cold blooded vertebrate that has skin covered with scales or horny plates and has lungs

S

• Sleet
• Small pellets of ice that forms when rain passes through a layer of cold air and freezes before hitting the ground

T

• Thermal
• an upward current of warm air, used by gliders, balloons, and birds to gain height.

U

• Unicelluar
• (of protozoans, certain algae and spores, etc.) consisting of a single cell.

V

• Vertebrate
• An animal with an internal backbone.

W

• Wind
• The horizontal movement of air caused by differences in air pressure

X

• X~axis
• the principal or horizontal axis of a system of coordinates

Y

• Y~axis
• the secondary or vertical axis of a system of coordinates

Z

• Zebra
• an African wild horse with black-and-white stripes and an erect mane.