Atoms
The subatomic particle with a positive electric charge located in the nucleus of the atom.
This is the unit used when measuring volume.
What are liters (l) or milliliters (ml)?
A car burning petroleum is an example of this type of change.
What is a chemical change?
What is a molecule?
This is Uranium's atomic number.
What is 92?
The core of an atom where the protons and neutrons are located.
This is the scientific instrument used to measure mass.
What is a triple beam balance?
A puddle freezing over as the temperature drops below 32 degrees Fahrenheit is an example of this type of change.
What is a physical change?
A chemical bond formed by the sharing of electrons between atoms of elements, such as between two non-metals.
What is a covalent bond?
What is 8?
The subatomic particle with a negative electric charge.
An average skateboard is 0.70 meters long. This is the average length of a skateboard measured in centimeters.
What is 70 centimeters?
This is an indication that a chemical reaction occurred when mixing baking soda and vinegar.
What is fizzing or foaming?
Known as the "building blocks" of chemistry, these particles are the smallest unit of elements. They combine to create molecules.
What are atoms?
The element with the atomic number of 22.
What is Titanium?
The name for electrons existing in the outermost electron shell of an atom.
What are valence electrons?
A female 7th grader in the United States would typically be around 1.57 meters tall on average. This is the average height represented in centimeters.
What is 157 centimeters?
This type of change occurs when a substance's composition is irreversibly changed. This change results in the creation of new substances, known as products, as bonds are broken and new ones are formed.
What is a chemical reaction?
The chemical bond which involves the complete transfer of valence electrons between atoms, producing two oppositely charged ions (the atom which loses electrons becomes positively-charged, while the atom gaining electrons becomes negatively-charged).
What is an ionic bond?
The total amount of protons in a molecule of water (H20).
What is 10?
The atomic number of an element is determined by the number of this subatomic particle in each atom.
What is a proton?
What is acidic?
Milk turning sour is an example of this kind of change.
What is a chemical change?
A group of two or more atoms of different elements that are chemically bonded together.
What is a compound molecule?
The atomic number of Rhenium.
What is 75?