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1st science vocab.

1st Semester science vocabulary

Apron A garment covering part of the front of the body and tied at the waist, for protecting the wearer's clothing: a kitchen apron.
Safety goggles large spectacles equipped with special lenses, protective rims, etc., to prevent injury to the eyes
Newtons 2nd law Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
Gloves covering for the hand made with a separate sheath for each finger and for the thumb.
Fire Extiguisher a portable container, usually filled with special chemicals for putting out a fire.
Fire blanket a large blanket-like piece of fire-resistant material such as fibreglass used in smothering a fire
Newetons 1st Law An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Newtons 3rd law For every action there is an equal and opposite re-action.
Test Tube a hollow cylinder of thin glass with one end closed, used in chemical and biological experimentation and analysis.
Inertia the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force.
Balanced force Balanced force is when two equal and opposite forces are applied on a body in two exactly opposite directions. We can say that when something is not moving then balanced forces are acting on that body.
Unbalanced force In physics, tension is the magnitude of the pulling force exerted by a string, cable, chain, or similar object on another object.
Accelertion a change in velocity.
velocity the time rate of change of position of a body in a specified direction
Petri dish a shallow, circular, glass or plastic dish with a loose-fitting cover over the top and sides, used for culturing bacteria and other microorganisms.
Periodic table a table illustrating the periodic system, in which the chemical elements, formerly arranged in the order of their atomic weights and now according to their atomic numbers, are shown in related groups.
Microscope an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye.
Density the state or quality of being dense; compactness; closely set or crowded condition.
Nucleus a central part about which other parts are grouped or gathered; core
Chemical Change a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition, resulting in the formation of at least one new substance.
Created by: y0406351