This is required for changes to occur within a system?
What is energy.
A substance that undergoes a change in a chemical reaction
What is a reactant
What name is given to reactions that transfers energy to its surroundings?
What is exothermic
This form of energy is carried by an electrical current..
What is electrical energy?
The average kinetic energy of a substance.
What is temperature.
True or false: Energy is stored in chemical bonds.
What is true.
This form of energy is created by vibrating particles that creates waves.
What is radiant or light?
When a reaction releases heat, the product of the reaction becomes hotter.
What is an exothermic reaction.
Some signs are color change, temperature change, or formation of a new subatance.
What is a chemical reaction.
What is meant by the term "thermal decomposition'?
To break down with heat
When pulling back a rubber band, _______ energy transfers to _________ energy.
What is kinetic, potential?
T or F: Light energy can transmitted, absorbed, or reflected?
What is true.
The total kinetic energy of the tiny particles that make up matter.
What is thermal energy.
What is the unit for measuring energy?
What is joule.
The sun demonstrates these three forms of energy. Name two of them
What is solar, thermal and radiant?
The process for when a plant absorbs energy from sunlight?
What is photosynthesis.
When a reaction absorbs heat, the product of the reaction becomes hotter.
What is an endothermic reaction.