Energy on the Move
This word names a material that lets heat or electricity pass through easily.
conductor
Raisins and cereal are combined in a bowl. This general term describes the combination.
mixture
Butter changes from a solid to a liquid in a warm pan. This phase change occurs.
melting
A coat needs this property to keep the cold from coming in.
Insulation
Salt is stirred into water until its grains cannot be seen. This process has occurred.
Dissolving
This word names a material that slows the movement of heat.
insulator
Salt dissolves evenly in warm water. This special type of mixture forms.
solution
Juice becomes a solid ice pop in a freezer. This phase change occurs.
freezing
A reusable rubber band needs this property so it can bend around a wrist.
Flexibility
Although dissolved salt cannot be seen, its tiny particles are still in this location.
The Water
A metal pan gets hot on the stove. Heat moves from the burner into this object.
the pan
Sand settles at the bottom of a jar of water. This explains why the sand and water do not form a solution.
the sand does not dissolve
A puddle gets smaller as liquid water enters the air as a gas. This phase change occurs.
evaporation
This property describes if something is yellow, blue, or green.
color
A shallow dish of saltwater sits uncovered. Only water evaporates. This substance remains after the dish dries.
Salt
A warm lunch container has a layer of foam around it. This explains how the foam helps keep lunch warm.
insulation
Brass is made by combining copper and zinc. This name describes the resulting metal mixture.
alloy
Water vapor touches a cool mirror and forms liquid droplets. This phase change occurs.
condensation
A playground slide has a bumpy surface that catches clothing. This surface property would help riders move down easily.
smoothness
Some water evaporates from a saltwater dish. This describes what happens to the amount of salt left in the dish.
It stays the same.
Two spoon handles sit in hot soup. The steel handle warms faster than the wooden handle. This observation shows which material conducts heat better.
steel
One jar contains salt dissolved in water. Another contains small pebbles in water. This mixture can be separated using a filter that catches the pebbles.
pebbles and water
Melted candle wax becomes solid as it cools. This describes what happens to its thermal energy.
heat energy leaves the wax or the molecules slow down
A shelf made from thin cardboard bends under heavy books. What property does the cardboard need to improve the shelf design
Strength
Two dishes start with equal amounts of the same saltwater solution. More water evaporates from Dish A. Dish B does not have any water evaporate. Which of the dishes has more salt that water left in it?
Dish A