Science

100

Photosynthesis

It is the process by which plants change the energy in sunlight to kinds of energy that can be stored for later use. Plants carry out this process in photosynthetic reaction centers. These tiny units are found in leaves, and convert light energy to chemical energy, which is the form used by all living organisms.

100

Chemical Reaction

chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

100

Thermal Energy

the energy contained within a system that is responsible for its temperature.

100

reactant

a substance that takes part in and undergoes change during a reaction.

100

Products

a substance that is present at the end of a chemical reaction.

200

ExoThermic

any chemical reaction that absorbs heat from its environment

200

EndoThermic

of a reaction or process accompanied by or requiring the absorption of heat.

200

Heat

the quality of being hot; high temperature.

200

Temperature

the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.

200

Baking Soda

sodium bicarbonate used in cooking, for cleaning, or in toothpaste.

300

Lit Candle, Exothermic or Endothermic

Exothermic

300

Ice Cube, Exothermic or Endothermic

Endothermic

300

Boiling Water, Exothermic or Endothermic

Endothermic

300

Campfire, Exothermic or Endothermic

Exothermic

300

The Sun, Exothermic or Endothermic

Exothermic

400

Freezing Water, Exothermic or Endothermic

Endothermic

400

Lit Torch, Exothermic or Endothermic

Exothermic

400

Black Hole, Exothermic or Endothermic

Exothermic

400

Rusting Iron, Exothermic or Endothermic

Exothermic

400

Thermite Reaction, Exothermic or Endothermic

Exothermic

500

Nuclear Fission, Exothermic or Endothermic

Exothermic

500

Cooking an Egg, Exothermic or Endothermic

Endothermic

500

dissolving ammonium nitrate in water, Exothermic or Endothermic

Endothermic

500

thermal decomposition of calcium carbonate, Exothermic or Endothermic

Endothermic

500

The formation of ionic bonds, Exothermic or Endothermic

Exothermic