Water Wonders
This property of water causes it to have a positive and negative end, allowing it to stick to surfaces and dissolve many substances.
What is polarity?
The number of these subatomic particles tells you what element an atom is.
What are protons?
Carbon usually forms four bonds because of this reason.
What is it has four valence electrons and needs four more to complete its octet?
This kind of plastic can be remelted and reshaped.
What are thermoplastics?
Using resources so future generations can also benefit is known as this.
What is sustainability?
Gypsum in this park forms white dunes, while in this cave it forms giant crystals.
What are White Sands and the Cave of Crystals?
These two parts of a chemical equation.
What are reactants and products?
You should only change one variable in an experiment for this reason.
What is to ensure a fair test and know what caused the results?
Unlike most substances, water does this when it freezes, making ice float.
What is expand?
This rule says atoms tend to bond in a way that gives them 8 electrons in their outer shell.
What is the Octet Rule?
This type of electron is involved in bonding and determines how atoms will interact.
What are valence electrons?
These long chains of repeating molecules make up plastics and other materials.
What are polymers?
This type of waste contains toxic metals, but recycling it helps recover valuable resources.
What is electronic waste (e-waste)?
This mineral is white at White Sands because it doesn’t contain iron or other coloring impurities.
What is gypsum?
The ________________ is located on the left side of the chemical equation. This is what starts the reaction.
What are reactants?
In an experiment, this is the variable you change.
What are independent variables?
Changing surface patterns can show how water interacts with different materials over time.
What are erosion patterns?
In this type of bond, electrons are shared; in the other, they are transferred.
What are covalent and ionic bonds?
In a neutral atom, the number of these two particles is equal.
What are protons and electrons?
In a saturated solution, no more solute can dissolve. In this type, there’s more solute than usual dissolved.
What is supersaturated solutions?
This plan helps repair and restore land after mining operations are done.
What is a reclamation plan?
Crystal size depends on this abiotic factor.
What is wind?
To balance a chemical equation, you can only change these numbers in front.
What are coefficients?
A dependent variable is one that changes because of this type of variable.
What are independent variables?
Water is known as a __________________ because of its ability to dissolve things.
What is a universal solvent?
This term describes how strongly an atom pulls on electrons in a bond, and it increases up and to the right on the periodic table.
What is electronegativity?
The rows on the periodic table represent this.
What are energy levels?
This type of change does not change the chemical make up of a compound.
What is a physical change?
These are two abiotic things needed to form gypsum sand at White Sands.
What are water and heat?
The number of water molecules associated with gypsum in the chemical formula for gypsum.
What is 2?
The subscript number in a compound represents the number of ___________.
What are the atoms of an element?
The 3 part of a CER.
What are claim, evidence, and reasoning?
In a water molecule, oxygen has a partial ______________ charge.
What is negative?
The purpose of elements bonding with other elements.
What is to fill the outer energy level with 8 electrons?
Selenium is located in column 16, row 4 and has 34 protons. It has this many valence electrons.
What is 6?
Vulcanized rubber is extremely strong, typically used in tires because it will not melt easily. This property is caused by __________________.
What are cross-linked bonds?
Inorganic, naturally occurring, crystalline structure, solid, definite chemical composition.
What are minerals?
This substance was used to represent gypsum in the crystal growing lab.
What is Borax?
A complete combustion reaction releases this gas and this compound, along with energy in the form of heat.
What are carbon dioxide and water?
The parts of an experiment that stay the same for all the trials is known as the ________________. These are kept the same to ensure that the data is only being assess for one variable.
What are the control variables?