Which of the following is not a part of preventative safety equipment: aprons, hair nets, goggles, gloves?
Hair nets
100
The way to calculate density is to divide _______ by _______.
Divide mass by volume. D=m/V
200
What unit is temperature typically measured in science?
Celsius degrees
200
What are smeiconductors?
Metalloids: elements with properties of both metals and non-metals.
200
Name two characteristics that all arthropods have?
What is at least 2 pairs of feet, more than two eyes, a simple nervous system
200
Should you ever eat, drink, or chew gum in a science lab?
No
200
A log and a rock take up the same volume. The log weighs 50 g, and the rock weighs 100 g. Which is more dense?
The rock
300
What are the three states of matter?
Solid, Liquid, Gas
300
True or false: Metals are typically shiny, bendable, and transfer heat or electricity.
True
300
Is a mixture like lemonade or Kool-Aid a physical or chemical change?
Physical change
300
What is the appropriate Emergence Safety Equipment you should use if you accidentally splash a chemical into your eyes?
Eye Wash
300
When heated, most matter becomes less dense. Because of this, hot air: rises or falls?
Rises
400
Which element exhibits permanent magnetism?
Iron
400
If a mineral is silky, dull, glassy, or resinous, it is probably a ....
Non-metal
400
How many elements are in the following compound: NaCl? What are their names, and what is this common household item?
2, Sodium and chlorine, Sodium Chloride or salt.
400
What two types of Emergency Safety Equipment should be in every lab in case of fire?
Fire blanket and fire extinguisher
400
The volume of an irregular object is measured in water. Before the object is placed in the graduated cylinder, there is 100 cu. mL of water. After the object is place in the tube, there is 145 cu. mL of water. What is the volume of the object?
45 cu. mL
500
What does volume describe?
How much space is taken up by an object.
500
A material that does not conduct heat or electricity is called an...
Insulator
500
What does: Often Guys Like Tacos, Chips, Pico, and Salsa stand for?
The signs of a chemical change: Odor, Gas, Light, Temperature change, Color change, Precipitate, and Sound
500
How should you smell a chemical in a science lab?
Waft the smell with your hand towards your nose
500
If an object weighs 75 grams and has a volume of 25 cu. cm., what is its density?