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What does it mean to change from a solid to a liquid state as a result of warming
A _____ is an explanation or representation of an object, system or process that cannot be easily studied
Model
True or False you can separate gravel just using your hands because the object is big enough to separate. Explain.
FALSE
A rule of evaluating testing something is called
Criteria (Singular Criterion)
What is one tool that you can use to SEPARATE salt from water?
Coffee filter, or screen
True or False: Scientist collaborate and work together on problems. Sometimes they even hold conferences so that they can talk about what they have observed when studying the problem
TRUE
A substance in which a solute dissolves to form a solution is called ....
Solvent
Quantity of matter is called the ....
Mass
What is the only property change that cannot go from one to another
Gas to a solid or solid to a gas
True or False - a crystal is a natural form material
TRUE
What is the purpose of a Drought Stopper?
To allow water to run in and out of a box with a funnel and a water tube
To ______ is to study an object
Analyze
True or False- Pebbles cannot be melted, they are rock and can only stay as a solid
FALSE
What does it mean to construct something
To build something
Explain what happens when you weigh your water of 50mg and your 5mg of salt and then you put them together
What does it mean to change from a solid to a liquid, a liquid to a solid, a liquid to a gas, or a gas to a liquid
Phase Change
What is a scientist who designs ways to accomplish a goal or solve a problem called?
An engineer
A characteristic of an object that can be observed such as size, color, shape or texture is called
Property
What causes water vapor?
When a liquid (water) turns into a gas (water vapor)
DOUBLE POINTS:
What is a solute vs a solvent?
A solution is always made of a solvent with a solute dissolved in it.
Solvent is the water
Solute is the item being dissolved (such as salt)
To divide or take apart is called ....
0 Degrees C or 32 Degrees F.