States of Matter and Mass
Name the three most common states of matter
What is Solid Liquid Gas?
Is oxygen (O₂) an element, compound, or mixture?
What is an Element?
What is a physical property?
What is a characteristic that can be observed or measured without changing the substance?
What is a chemical property?
What is a characteristic that describes a substance’s ability to change into a new substance?
Write the formula for density.
What is Density = Mass ÷ Volume?
This state of matter has particles that vibrate but do not move from place to place
What is a solid?
Salt (NaCl) is an example of what?
What is a Compound?
Give two examples of physical properties.
What is Color, density, melting point, mass, volume, texture, solubility?
Give one example of a chemical property.
What is Flammability, reactivity with acid, ability to rust.
Which state of matter has a definite volume but takes the shape of its container?
What is a Liquid?
In which state do particles move the fastest?
What is Gas?
Kool-Aid is what type of mixture?
What is a Homogenous Mixture?
Why is density considered a physical property?
What is because it can be measured without changing the substance into something new?
Why is “flammability” a chemical property?
What is because burning creates new substances (ash, smoke, gases).
An object has a mass of 40 g and a volume of 10 cm³. What is its density?
What is 4 g/cm³?
What makes plasma different from gas?
What is Plasma contains charged particles (ions and electrons).
Trail mix is an example of what type of mixture?
What is Heterogenous Mixture?
Which has a greater density: lead (11.3 g/cm³) or aluminum (2.7 g/cm³)?
What is Lead?
Which shows a chemical change: boiling water, rusting iron, or melting ice?
What is Rusting iron?
A cube has sides of 3 cm and a mass of 81 g. What is its density?
What is Volume = 27 cm³; Density = 3 g/cm³?
Explain how adding heat affects the motion of particles in solids, liquids, and gases.
What is Heat increases particle motion; solids vibrate more, liquids move faster, gases spread out more quickly.
Explain one way compounds differ from mixtures.
What is Compounds are chemically bonded in fixed ratios and can’t be separated physically; mixtures are physically combined and can be separated?
A student observes that a liquid is clear, has no odor, and boils at 100°C. What is the most likely substance?
What is Water?
Vinegar reacts with baking soda to produce bubbles of gas. What does this tell us about the change?
What is it’s a chemical change because a new substance (carbon dioxide gas) forms?
A metal cylinder has a mass of 150 g. When placed in a graduated cylinder, the water level rises from 50 mL to 110 mL. What is its density?
What is Volume = 60 mL (110 – 50); Density = 150 ÷ 60 = 2.5 g/mL?