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WorksheetsLab Safety & Atoms
Total questions: 50
Worksheet time: 4hrs 10mins
Name
Class
Date
1.
You should always wear safety glasses or goggles when using all of the following except---
a)
Heat
b)
Glassware
c)
Sharp pencils
d)
Chemicals
2.
After completing an experiment, what should you do with the waste?
a)
Throw away everything in the trashcan.
b)
Pour liquids down the sink.
c)
Leave everything on the lab table.
d)
Follow your teacher's directions.
3.
During an activity, your lab partner accidentally starts a small fire. What should you do first?
a)
Tell the teacher right away.
b)
Help put out the fire, then tell the teacher.
c)
Run to get the fire extinguisher.
d)
Pour water on the fire.
4.
A glass beaker breaks into many pieces and you tell the teacher. What will be the most likely response?
a)
The teacher will clean up the glass.
b)
The teacher tells you to carefully sweep up the pieces and throw them in the trash.
c)
The teacher tells you to carefully sweep up the pieces and throw the pieces in a special container for broken glass.
d)
The teacher gets upset and calls your parents to pay for the beaker.
5.
Your teacher is conducting a demonstration at the front of the class and accidentally inhales a toxic gas and passes out. What should you do first?
a)
Check if the teacher is OK.
b)
Evacuate the room immediately.
c)
Wait a few seconds to see if the teacher wakes up.
d)
Go tell the teacher in the next classroom.
6.
After a lab activity, what should you always do before leaving the science room?
a)
Clean up and dispose of trash properly.
b)
Wash hands.
c)
Wait to take off safety glasses at the very end of cleaning up.
d)
All of the above.
7.
When you walk in the room, you notice many neat and interesting things set up in the lab. What is allowed?
a)
Touch only the items that you know what they are for sure.
b)
Look but don't touch, taste, or smell anything.
c)
Start figuring out how to use the tools.
d)
Mix things together to see how they react.
8.
What is considered to be horseplay?
a)
Throwing objects and playing catch with lab materials.
b)
Wiping gross substances on your lab partner's skin or clothes.
c)
Pushing or pulling lab tools because you want to take your turn first.
d)
All of the above.
9.
Why is it important not to eat food or drink liquids in the lab without your teacher's permission?
a)
It's not nice to eat & drink without sharing.
b)
Food and drinks could be contaminated when exposed to the science lab.
c)
It is a school policy.
d)
You can gain more weight than normal in the science lab.
10.
If you do not understand part of the instructions, what should you do first?
a)
Ask your lab partner.
b)
Ask your teacher.
c)
Wait for the instructions to be given a second time.
d)
Watch the other groups and copy them.
11.
What is the name of this tool?
a)
Erlenian Beaker
b)
Erlenmeyer Flask
c)
Erlanderman Tube
d)
Erleenmer Cylinder
12.
What is the main function of a triple beam balance?
a)
Find the weight of an object.
b)
Find the volume of an object.
c)
Find the matter of an object.
d)
Find the mass of an object.
13.
This does this object measure?
a)
Volume
b)
Mass
c)
Force
d)
Weight
14.
Which tool is used to measure volume?
a)
Graduated Cylinder
b)
TBB
c)
Spring scale
d)
Funnel
15.
What is the name of this object?
a)
Erlenmeyer Flask
b)
Test tube
c)
Beaker
d)
Testing Glass
16.
What is the BEST description of mass?
a)
All the matter in an object.
b)
How much an object weighs.
c)
The amount of space an object occupies.
d)
The size of an object.
17.
What is the BEST description of matter?
a)
If you're upset then something is the matter with you.
b)
It's the same as volume.
c)
A physical substance that takes up space.
d)
All the stuff.
18.
What is the BEST description of an atom?
a)
The smallest part of matter possible.
b)
Matter that is too small to cut.
c)
The smallest piece of matter in which an element can exist.
d)
Super small and tiny stuff.
19.
All are subatomic particles of an atom except for-
a)
Protons
b)
Nucleus
c)
Electrons
d)
Neutrons
20.
Most of an atom's volume is made up of what?
a)
Nucleus
b)
Protons
c)
Neutrons
d)
Empty space
21.
Most of an atom's mass is made up of what?
a)
Electrons
b)
Electron Cloud
c)
Nucleus
d)
Shells
22.
What is the charge of a neutron?
a)
Negative
b)
Postive
c)
Neutral
d)
Any
23.
Which statement is true of atoms?
a)
The protons and electrons are in the nucleus.
b)
The number of neutrons is always equal to the number of protons.
c)
The neutrons are negative and orbit the nucleus in the cloud.
d)
The number of protons is equal to the number of electrons.
24.
What is the charge of a proton?
a)
Positive
b)
It depends on the electrons.
c)
No charge
d)
Neutral
25.
What is the charge of the entire nucleus?
a)
No charge because the neutrons are in the nucleus.
b)
Negative because the electrons are always equal to the protons.
c)
The nucleus has no charge because it's not a subatomic particle.
d)
Positive because the protons are positive and the neutrons to not have a charge.
26.
What is the atomic number of this element?
a)
7
b)
14.0067
c)
14
d)
N
27.
What is the FIRST piece of information can you find out from the atomic number?
a)
Electrons
b)
Mass
c)
Protons
d)
Neutrons
28.
What is the atomic symbol for Potassium?
a)
K
b)
Po
c)
Pt
d)
Pm
29.
Which atomic symbol is incorrect?
a)
TH
b)
W
c)
Au
d)
I
30.
How many neutrons are in one atom of Beryllium (Be)?
a)
4
b)
9
c)
13
d)
5
31.
How many protons and electrons are in one atom of Argon (Ar)?
a)
18 and 18
b)
18 and 40
c)
18 and 36
d)
18 and 39
32.
Which element has more mass than Carbon (C)?
a)
Helium
b)
Boron
c)
Lithium
d)
Oxygen
33.
Which element has less protons than Magnesium (Mg)?
a)
Sodium (Na)
b)
Aluminum (Al)
c)
Chlorine (Cl)
d)
Silicon (Si)
34.
What does APE mean in APE MAN?
a)
The atomic mass is the same as the protons and electrons.
b)
The atomic number is the same as the electrons and protons.
c)
You need to subtract the atomic number and protons.
d)
You need to subtract the atomic number and electrons.
35.
What does the MAN mean in APE MAN?
a)
Man! This is too hard.
b)
Mass is the same as atomic mass and neutrons.
c)
Atomic mass subtract atomic number gives neutrons.
d)
It's what's in the nucleus...the mass.
36.
Which subatomic particle do you look at if you want to know the reactivity?
a)
Electrons
b)
Nucleus
c)
Protons
d)
Neutrons
37.
What is the BEST description of valence electrons?
a)
The electrons on the first shell.
b)
All the electrons.
c)
Use the atomic number because it's the same as protons and also the electrons.
d)
The outer electrons on the outermost shell.
38.
Which statement about reactivity is the MOST accurate?
a)
A valence of 1 is considered to be reactive.
b)
A valence of 8 is highly reactive.
c)
A valence of 1 is non-reactive.
d)
A valence of 8 is non-reactive.
39.
What is the valence of this atom?
a)
2
b)
1
c)
8
d)
11
40.
What is the reactivity of this atom?
a)
Highly reactive
b)
Non-reactive
c)
Reactive
d)
Really reactive
41.
If the valence is 5, what group does the element belong to?
a)
group 5A
b)
group 3A
c)
group 18
d)
group 1A
42.
What is the valence of an atom that belongs in group 6A?
a)
16
b)
8
c)
6
d)
15
43.
An atom of Aluminum has 13 electrons. How many of those electrons are valence electrons?
a)
All of them.
b)
2
c)
8
d)
3
44.
Which is the BEST description of a group?
a)
They all have the same number of valence electrons.
b)
They run up and down (vertically).
c)
They have the same reactivity.
d)
All of the above.
45.
What is the period number?
a)
The number of shells.
b)
The same as the group number.
c)
The same as the valence electrons.
d)
It tells the reactivity.
46.
How many shells does an atom of Calcium (Ca) have?
a)
1
b)
2
c)
3
d)
4
47.
What is the period number of this atom?
a)
1
b)
2
c)
3
d)
4
48.
What is the name of the atom that is in group 6A and period 2?
a)
Oxygen
b)
Boron
c)
Hydrogen
d)
Beryllium
49.
What is the name of the atom with 2 valence electrons and in period 3?
a)
Lithium
b)
Helium
c)
Magnesium
d)
Sulfur
50.
What is the name of the atom with 8 valence electrons and 2 shells?
a)
Fluorine
b)
Neon
c)
Argon
d)
Chlorine
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