physical and chemical changes
classification
chemical reactions
atoms
other 8th grade science
100
What type of change takes place when a can is crushed?
What is a physical change?
100
What is the first step in the classification system?
What is a domain?
100
What is the left side of a chemical equation called?
What is a reactant?
100
What is an atom that loses or gains an electron?
What is an ion?
100
What is an iron core wrapped in a coil of wire called?
What is a solenoid?
200
What type of change occurs when iron rusts?
What is a chemical change?
200
What is the narrowest level in the classification system?
What is a species?
200
What is the right side of a chemical equation called?
What is a product?
200
What is an atom that has a different number of neutrons from the original atom?
What is an isotope?
200
How can you make an electromagnet stronger?
What is add more wire or loops?
300
What is one of the clues for a chemical change?
What is color change, gas formation, energy change, solid formation?
300
How many levels are in the classifications ystem?
What is 8?
300
What is the name of the small number in a chemical equation?
What is a subscript?
300
What subatomic particles are found in the nucleus of the atom?
What are protons and neutrons?
300
What is the ph range for an acid?
What is 0-6.9?
400
What type of change takes place when you mix something?
What is a physical change?
400
What is the scientific name for a house cat?
What is Felis domesticus?
400
What law states that in a chemical equation, matter is neither created nor destroyed?
What is the law of conservation of mass?
400
How many electrons are needed to make an atom stable?
What is 8?
400
What tool helps you identify an unknown organism by distinguishing between the characteristics that describe the unknown?
What is a dichotomous key?
500
What type of change causes a new substance to form?
What is a chemical change?
500
What are the two parts to a scientific name?
What is a genus and a species?
500
What coefficient is needed to balance the following equation: 2H2 + O2 ---> ____H2O
What is 2?
500
How many total electrons fill the first energy level?
What is 2?
500
What type of bioengineering helps a plant or animal by completing changing the plant or animal?
What is adaptive technology/bioengineering
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