Chemistry Overview
What are the smallest particles of an element that retain its properties?
What is an atom?
What is the first step in the scientific method?
What is observation?
What is the SI unit for mass?
What is the kilogram (kg)?
How is density calculated?
What is density = mass ÷ volume?
What is matter composed of?
What are atoms?
What is formed when two or more atoms bond together?
What is a molecule?
What type of observations involve numbers and measurements?
What are quantitative observations?
Convert 1 liter to milliliters.
What is 1000 mL?
What will happen to an object with a density greater than 1 g/mL when placed in water?
What is it will sink?
Name the two main types of matter.
What are mixtures and pure substances?
What is a chemical reaction?
What is a process where one substance changes to another by reorganizing the atoms?
What is a hypothesis?
What is a proposed explanation for an observation?
What is the volume formula for a rectangular object?
What is length × width × height?
Calculate the density of an object with a mass of 48 grams and a volume of 24 cm³.
What is 2 grams/cm³?
What distinguishes a compound from an element?
What is a compound consists of two or more different elements chemically combined, while an element is a pure substance?
Write the chemical formula for two water molecules.
What is 2H2O
What comes after formulating a hypothesis in the scientific method?
What is conducting experiments?
What is the SI unit for temperature?
What is the Kelvin (K)?
Describe how to find the volume of an irregularly shaped object.
What is using water displacement?
Give an example of a qualitative observation.
What is describing an object as blue or heavy?
What is the primary difference between an atom and a molecule?
What is an atom is a single unit of an element, while a molecule is a combination of two or more atoms?
How does a theory differ from a law in science?
What is a theory explains why something happens, while a law summarizes what happens?
What is the difference between mass and weight?
What is mass is the amount of matter, while weight is the force of gravity on that mass?
If an object has a mass of 21 grams and a volume of 7 mL, what is its density?
What is 3 grams/mL?
What is the difference between atoms and molecules?
What is atoms are single units while molecules are groups of atoms bonded together?