Lab Safety
Scientific Method
Matter
Mass and Weight
Physical Properties
100
Make sure your hair is tied up or pulled back at all times
How do you prevent an accident in the lab involving your hair?
100
State your problem
What is the first step in the Scientific Method?
100
Anything that has mass and takes up space
What is Matter?
100
The amount of matter in an object
What is mass?
100
A characteristic of a substance that does not involve a chemical change, such as density, color, or hardness
What is a physical property?
200
Goggles and Gloves
What are two items that help you protect yourself while in the lab during Physical Science?
200
Make and Inference Form a Hypothesis
What two steps of the Scientific Method Are Very Similar?
200
The amount of space taken up, or occupied, by an object
What is volume
200
The brick has more mass, so a greater gravitational force is exerted on the brick than on the sponge.
Why does a brick weigh more than a sponge even though they have the same volume?
200
The physical form in which a substance exists such as solid liquid and gas
What is state?
300
When your teacher or instructor arrives and gives you permission to do so.
When do you begin experiments in the Physical Science Lab?
300
You have to design an experiment and then conduct the experiment
What are the two steps involved in the experiment piece of the Scientific Method?
300
The curve at the surface of a liquid in a graduated cylinder
What is the meniscus?
300
The tendency of an object to resist a change in motion. So, an object at rest will remain at rest until something causes the object to move. Also, a moving object will keep moving at the same speed and in the same direction unless something acts on the object to change its speed or direction.
What is inertia?
300
Thermal conductivity is the rate a which a substance transfers heat Solubility is the ability of a substance to dissolve in another substance.
What is the difference between thermal conductivity and solubility?
400
Never drink chemicals Never be cruel to animals Report accidents or injuries to your teacher Don't place things in electrical sockets Don't wash electronic devices Don't horse play Don't touch broken glass Don't pour chemicals in the sink
What are six lab safety rules?
400
Analyze Data Draw Conclusions Repeat or Share Results
What are the final three steps of the Scientific Method?
400
volume = length × width × height (Regular Solid) volume= dropping the object in a graduated cylinder and measuring the volume of water that the object displaces. (Irregular Solid)
What is the difference between finding the volume of a regular solid and an irregular solid?
400
Mass is measured in grams, kilograms,or milligrams Weight is measured in Newtons Weight can change according to where you are in the Universe Mass does not change Weight is measured with a spring scale Mass is measured with a balance scale
What are three differences between mass and weight?
400
Popcorn “pops” when a tiny amount of water contained in the kernel is superheated and turns to steam. When enough pressure builds up inside the kernel, it ruptures and turns into popcorn. When the solid butter is heated up it turns into liquid butter and spreads over the popcorn.
What physical changes occur when you pop pop corn and add butter?
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