Safety | ||
#1 | The only person allowed up during a lab is the... |
Materials Manager |
#2 | What kind of shoes do you wear during a lab? |
closed toes and healed shoes |
#3 | When you come in and lab materials are on the table you should... |
Not touch them until instructed to |
#4 | True or False: Pick up glass with your hands. |
False |
#5 | When observing smells in the lab you should... |
waft fumes instead of smelling them directly |
Periodic Table/ tools/ safety | ||
#1 | Where are the metals, nonmetals, and metaloids on the periodic table? | Metals left, Metalloids on the stair step, Nonmetals Right except Hydrogen |
#2 | Which metals on the periodic table are the best conductors? | Those furthest to the left. |
#3 | How should you wear your hair in the lab? | tied up |
#4 | How do you smell things in science? | Waft it |
#5 | Which direction do periods go on the periodic table? | Horizontal |
Chemical/ Physical | ||
#1 | What is density? | the mass of an object divided by its volume |
#2 | When a material changes states it is a ____________ change? | physical |
#3 | What are examples of Physical Changes? | changes in shape, changes in state, changes in size, dissolving |
#4 | What are the signs of a chemical change? | A change in or to a participtate, energy, color, smell, and bubbles(gas production) |
#5 | What is Luster? | Objects with high luster are really shiny |
Elements/Mixtures and Solutions | ||
#1 | How many elements are in the following compound NaCH? | 3 |
#2 | Identify the following element K. | Potassium |
#3 | How do you determine the number of elements in a compound? | Count the different Capital Letters |
#4 | Chemical Formulas are used to represent... | Elements and Compounds |
#5 | If you can easily pick out different materials the substance is a ... | mixture |
Misc. | ||
#1 | Conduction requires..... | Contact |
#2 | Radiation comes from.... | Electromagnetic Waves |
#3 | Convection is ... | the movement of heat through fluids like liquid or air |
#4 | Scratching a rock is a good way to check the rocks ...... | hardness |
#5 | What are properties of metals in a liquid or heated state.... | Malleable and ductile |
Final Question | |
How do you calculate density of irregular and regular objects? | Regular shaped objects you find volume by L x W x H and divide mass by volume. Irregular shaped objects you find volume by filling a graduated cylinder partly with water and then dropping the object in. The difference in the water line is the volume of the object. Then you divide mass by volume. |