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- 1. Multiple Choice
Which of the following is not a safety precautions followed in a science lab?
Wear goggles
No horseplay
Eat food in lab area
Tie long hair back
- 2. Multiple Choice
What was a goal of early Alchemists
Organize elements into a table
Make fireworks
Discover the structure of an atom
Turn lead into gold
- 3. Multiple Choice
What is a hypothesis
an educated guess
a proposed testable explanation for an observation or a scientific phenomena
the data collected from an experiment
a description of physical and chemical properties of a substance
- 4. Multiple Choice
Which of the following is a graduated cylinder
- 5. Multiple Choice
Which of the following is a beaker
- 6. Multiple Choice
What is the correct volume of the water in the container
43.0 ml
44.0 ml
42.5 ml
43.5 ml
- 7. Multiple Choice
What is mass?
the amount of space an object takes up
the amount of substance in an object
the amount of energy in an object
the amount of objects you have
- 8. Multiple Choice
What tool do you use to measure mass?
ruler
graduated cylinder
beaker
electronic balance
- 9. Multiple Choice
What is volume?
the amount of space an object takes up
the amount of substance in an object
the amount of energy in an object
the amount of object you have
- 10. Multiple Choice
What tool do you use to measure volume?
beaker
graduated cylinder
electronic balance
timer
- 11. Multiple Choice
Using water displacement, what is the volume of the shown in the picture?
29.0 ml
9.0 ml
10.0 ml
19.0 ml
- 12. Multiple Choice
How is density determined?
mass x volume
volume/mass
mass/volume
put it in water
- 13. Multiple Choice
Which property below is extensive?
melting point
volume
density
malleability
- 14. Multiple Choice
Which property could be used to determine whether an unknown substance is gold?
volume
mass
temperature
density
- 15. Multiple Choice
Pure gold is very soft and flexible. 14 karat gold jewelry is a mixture of gold and other metals to increase the ability of the gold to hold its shape. If pure gold has a density of 19.3 g/cm3 and the other metals have a density of 8.8 g/cm3, which of the following could be the density of 14 karat gold?
8.8 g/cm3
14.0 g/cm3
19.3 g/cm3
24.2 g/cm3
- 16. Multiple Choice
What is the difference between an element and a compound?
an element is most simple form of something and a compound is most complex form
an element is a single type of atom that can't be broken down into smaller part by chemical means and a compounds is two or more different types of atoms that can be broken down by chemical means.
an elements is an atom with everything else removed and a compound is all types of atoms together
elements are the basic forms of matter including water, air fire and earth and a compound is when those things are mixed together to form all forms of matter
- 17. Multiple Choice
How many elements are in CaCO3?
6
5
4
3
- 18. Multiple Choice
What does NaCl(s) look like?
clear liquid
colored gas
colored liquid
white solid
- 19. Multiple Choice
Which of the following elements would have similar properties?
N, O, F
Ca, K, Ag
He, Ne, Ar
P, Si, B
- 20. Multiple Choice
How would the properties compare in the following substances, calcium (Ca), oxygen (O) and calcium oxide (CaO)?
All would have similar properties.
They would all be solids.
They would all react to water similarly.
They would all have different properties
- 21. Multiple Choice
How did the copper cycle lab demonstrate the law of conservation of mass?
The lab stated with copper and ended with copper
The energy was conserved throughout the lab just changing form
The mass of copper at the beginning of the lab is the same as the mass of copper at the end of the lab
The mass at the end of the lab equaled all parts added together throughout the lab
- 22. Multiple Choice
Which of the following substances is not matter?
air
water
time
powder sugar
- 23. Multiple Choice
Which of the following is not a sign of a chemical change?
change of color
bubbles forming
temperature change
phase change
- 24. Multiple Choice
Copper is an example of a
mixture
solution
element
compound
- 25. Multiple Choice
At room temp, most elements on the periodic table are
solid metals
gas non metals
solid nonmetals
liquids metals
- 26. Multiple Choice
What group of elements are least reactive?
alkali metals
transition metals
halogens
noble gases
- 27. Multiple Choice
Which element is most reactive in the alkali metals?
Fr
Rb
K
Li
- 28. Multiple Choice
What pattern is seen as you go down the periodic table?
the atomic radius gets smaller
the number of valence electrons decreases
the atomic mass increases
the number of elements it bonds with increases
- 29. Multiple Choice
What pattern is seen as you go across the periodic table from left to right?
the atomic radius increases
reactivity increases
the number of spokes increases
atomic mass decreases
- 30. Multiple Choice
How is the modern periodic table primarily organized?
atomic mass
atomic number
color
density
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