Elements, Compounds, and Mixtures
This substance is made of only one type of atom and supports life by helping us breathe.
What is an element?
A beam of light scatters as it passes through this type of mixture.
What is a colloid?
Tearing a sheet of paper changes its shape, but not its composition.
What is a physical change?
The snowman you built yesterday is now a puddle of water on the ground.
What is melting?
This solid white substance is made when sodium and chlorine combine chemically.
What is a compound?
This mixture has particles so small they cannot be seen with the naked eye.
What is a solution?
The color of ink describes an observable trait without altering the substance.
What is a physical property?
Your towel from your shower this morning is now dry because the water disappeared into the air.
What is evaporation?
This mixture looks uniform throughout, even though it’s made of water, fats, and proteins.
What is a homogeneous mixture?
This type of mixture has particles that visibly settle over time.
What is a suspension?
Wood burning in a fire produces new substances like ash and smoke.
What is a chemical change?
This is the temperature at which water starts bubbling and turning into vapor.
What is the boiling point?
This dessert has visible bits of chocolate and mint flavor swirled together.
What is a heterogeneous mixture?
You must shake this mixture to evenly distribute its particles.
What is a suspension?
Fireworks have the ability to combust due to their reactivity with oxygen.
What is a chemical property?
The birds can’t drink from the birdbath because the water has turned solid.
What is freezing?
This food item has multiple clearly visible parts like cheese, sauce, and vegetables.
What is a heterogeneous mixture?
This cloudy mixture in the air is an example of a colloid.
What is fog?
When ice melts, it turns into water — but when that same water is boiled to form steam, bubbles appear without forming a new substance. Identify both processes.
What are physical changes?
This is the temperature you need for icicles to form.
What is freezing point?