Chemistry
is the type of change that happens when chemical bonds break and new bonds form
what is a chemical change?
A chemical reaction that releases heat is known as this
what is an exothermic reaction?
is the type of plate boundary where the sea-floor spreading occurs
what is divergent?
Element group that are shiny, malleable, ductile, and good conductirs
what are the metals?
is the element that comprises most of the mass of the sun
what is hydrogen?
a decomposing or rotting fruit is an example of what type of change
what is chemical change?
is the SI unit for force
what is Newton?
is the organelle where the cellular respiration takes place
what is the mitochondria?
A uniform mixture that involves a solute dissolving in a solvent
what is a homogeneous mixture or solution?
is the tide with the least difference between consecutive low and high tides.
what is a neap tide?
is the only sure evidence for a chemical reaction
what is a new substance?
is the term used for describing a model of the universe in which Earth is at the center of the revolving planets and stars
what is geocentric?
is the moon phase in which a lunar eclipse happens
what is a full moon
is the most abundant metalloid in Earth's crust
what is silicon?
The moon phases Earth is experiencing during neap tides
what are 1st Quarter and 3rd Quarter?
the substances listed on the left side of a chemical equation
what are the reactants?
Earth's atmosphere is composed of about 78 percent of this element
what is nitrogen?
is an example of a greenhouse gas
what is carbon dioxide?
The chemical reaction between sodium (na) and Chlorine (Cl) forms this
what is NaCl or salt?
The method of transfer of energy through the sun's radiative zone
what is radiation?
States: matter is not created or destroyed
what is the principle of conservation of mass?
it has the longest wavelength in the electromagnetic spectrum
what is radio waves?
is the unit used to measure distance in our solar system
what is an astronomical unit or A.U.?
An element's position in the periodic table is based on this
what are the number of protons in the nucleus?
Term describing a model of the solar system in which Earth and the other planets revolve around the sun
what is heliocentric?