States of
Matter
Matter
Which state of matter has particles packed tightly together in fixed positions?
Solid
What happens to total mass when 50g of ice melts in a sealed bag?
Mass stays the same (50 grams)
What is the mathematical formula for finding the volume of a rectangular prism?
Volume = Length × Width × Height
What tool is used to measure the volume of a liquid?
Graduated Cylinder
True or False: Liquid water turns into nothing when it evaporates
False (It turns into water vapor gas)
Why can a gas easily be squeezed or compressed into a smaller container?
Gas particles have lots of empty space between them
If you dissolve 10g of sugar into 100g of water, what is the total mass?
110 grams
Find the volume of a box with Length = 5 cm, Width = 2 cm, Height = 3 cm
30 cm³
Name the method used to find the volume of an oddly-shaped solid object like a stone or marble.
Water Displacement
Why can't you measure an irregular rock's volume using Length × Width × Height?
It has uneven sides/shapes
How do particles move in a liquid state?
They stay close together but slide past one another
State the Law of Conservation of Mass in your own words.
Matter/mass cannot be created or destroyed
Water level starts at 20 mL and rises to 28 mL when a rock is added. What is the rock's volume?
8 mL (or 8 cm³)
What tool measures the mass of an object in grams?
Balance scale or Digital scale
What are the tiny building blocks that make up all matter called?
Atoms / Molecules / Particles
What state of matter expands to completely fill any container it is put into?
Gas
Liquid water freezes into ice in a sealed container. Does mass increase, decrease, or stay identical?
Stays identical
How many milliliters (mL) are equal to 1 cubic centimeter (1 cm³)?
1 mL
Define the word "Volume" in science
The amount of space an object takes up
When water freezes into ice, why does it push up the lid of a container?
Water expands (takes up more volume) when it freezes
What two things must all matter have by definition?
Mass and Volume (takes up space)
Why must a container be sealed when testing conservation of mass for a gas?
To prevent gas particles from escaping into the air
A cube has sides of length 4 cm. What is its volume?
64 cm³ (4 × 4 × 4)
What is the difference between mass and volume?
Mass is the amount of matter; volume is the space it takes up
Baking soda and vinegar in an open beaker drop from 150g to 146g on a scale. Was mass destroyed? Explain.
No. Gas escaped into the air. In a sealed container, mass remains 150g