Lab Safety
You must wear this special eye protection during labs.
What are safety goggles/glasses?
This state of matter has a defined shape and contains little energy.
What is a solid?
A group of atoms bonded together.
What is a molecule?
These are what you start with in a chemical reaction.
What are reactants?
These are the smallest unit of all living things.
What are cells?
You must not wear this during labs.
What is Jewelry?/What are open-toed shoes?/What is loose clothing?
This state of matter takes the shape of containers it is in and contains some energy.
What is a liquid?
These formulas show how many of each atom are in a molecule and tell us what the products and reactants of the reaction are.
What is a chemical formula
These are what you create in a chemical reaction.
What are products?
These are the two different types of (Eukaryotic)cells.
What are plant and animal cells?
These behaviors are strictly prohibited in the lab?
What is goofing off/horsing around/playing practical jokes?
This state of matter has no shape and contains the most energy.
What is a gas?
This is a chemical bond where an atom takes or gives an electron to create a bond.
This is the type of change in which a substance changes its physical characteristics but is still the same substance. This process is reversible.
What is a physical change?
These are the specialized parts of the cell that carry out specific functions. They are almost like the organs of the cell.
What is a cell organelles?
These are some of the most avoidable and dangerous things to do in the lab.
What is smelling/touching/eating/drinking any materials or chemicals we are using in the lab?
States of matter change when we add or take away this element.
What is heat?
This is a chemical bond where atoms share the same electrons to create a bond.
What is a covalent bond?
This is a change in which a substance undergoes a chemical reaction and changes chemically to make something new. This process is irreversible.
What is a chemical change?
These are the organelles that only plant cells have.
What are the cell wall and chloroplast?
It is essential that you pay attention to and follow this to participate in the lab.
What is paying attention to and following the teacher's directions?
What is reading the procedure?
Solid --> Liquid
Liquid --> Solid
Liquid --> Gas
Gas --> Liquid
What is melting?
What is freezing?
What is evaporation/boiling?
What is condensation?
These are the outside electrons in the atom or the electrons in the outer shell of an atom.
What are valence electrons?
These are the signs of a chemical reaction.
What are color change, bubbling/foam/, temperature change, and a precipitate/solid forming?
These are organelles that are both in plant and animal cells.
What are the cytoplasm, cell membrane, mitochondria, and nucleus?