Physical Properties
What tool do we use to measure mass?
Triple Beam Balance or Scale
______________ is a combination of two or more substances that can be physically separated.
Mixture
What are the three states of matter?
Solid Liquid Gas
Matter cannot be created or __________.
Destroyed
Which tool would you use to separate sand from water?
Paper Filter
Which physical property describes whether something sinks or floats?
Relative Density
What tool is best for separating a mixture of Iron filings + sand?
Magnet
Evaporation is when a liquid changes into a_______
Gas
When 20 g salt is dissolved in 70 g water, and the water evaporates, how much salt is left?
20 grams
When warm air meets a cold surface, water vapor turns into liquid water. What is this process called?
Condensation
Which property of sugar stays the same when dissolved,
Taste or Physical State?
Taste
What type of mixture is lemonade?
Solution
What process changes water vapor into liquid water?
Condensation
If 15 g sugar is added to 100 g water, what is the total mass of the solution?
115 grams
What is the difference between a Conductor and an Insulator?
Conductors allow heat and electricity to flow through. Insulators DO NOT allow heat and electricity to flow through.
Rubber and Glass are good ___________ and Metals are good _________.
Conductors and Insulators
When sand is mixed with water, what happens?
Sand settles, water remains liquid
Ice cream melts because __________ is added.
Heat
Miss. Perez creates a solution of 70 grams of honey and 200 mls of water. She left the outside and noticed that half the water had "disappeared". What actually happened to the water?
It evaporated
Explain why sugar water is a solution and not just a mixture.
Because the sugar dissolves evenly throughout the water, forming a uniform mixture.