Metrics and Lab Safety

Question 1

Conduct yourself in a responsible manner at all times.

No _____________

Answer 1

horseplay

Question 2

Follow all instructions carefully.

What should you so if you do not understand the written or verbal instruction?

Answer 2

Ask a teacher

Question 3

Perform only approved experiments.

When the teacher leaves the science room, what do you do?

Answer 3

Wait patiently for further instructions

Question 4

No ___ or ____ are EVER permitted!

Answer 4

food and drinks

Question 5

Keep hand away from face after contact with chemicals. What should you do after working with said chemicals?

Answer 5

Wash hands really well

Question 6

Keep science work area _____ at all times

Answer 6

neat and/or clean

Question 7

Wear safety equipment.

You shoulld never _____ the equipment during a science experimant.

Answer 7

remove

Question 8

Clean all work areas and equipment.

In what condition should you return the equipment?

Answer 8

clean and in working order

Question 9

Dispose of waste materials as _______

Answer 9

directed by teacher

Question 10

Report all accidents to _______

Answer 10

the teacher

Question 11

Consider all chemicals to be dangerous. If you want to smell chemicals, what do you do?

Answer 11

waft

Question 12

order of unit prefixes

Answer 12

k h dk B d c m

Question 13

kilo

Answer 13

(k) value of 1000

Question 14

hecto

Answer 14

h, value of 100

Question 15

deka

Answer 15

dk or da value of 10

Question 16

base

Answer 16

grams, meters, liters, value of one

Question 17

deci

Answer 17

d value of 0.1

Question 18

centi

Answer 18

c value of 0.01

Question 19

milli

Answer 19

m value of 0.001

Question 20

Neutrons have _________

Answer 20

no charge

Question 21

The nucleus has an overall _________

Answer 21

positive charge

Question 22

What is the part of the atom held together by strong force, and keeps electrons held electromagnetically?

Answer 22

nucleus

Question 23

Part of the atom that electrons are likely to be found in

Answer 23

electron cloud

Question 24

Electrons are __________

Answer 24

negatively charged particles constantly moving inside an atom

Question 25

Particles found within an atom are called?

Answer 25

subatomic particles

Question 26

1st energy level of an atom hold ____ electrons

Answer 26

2

Question 27

2nd energy level holds…?

Answer 27

8

Question 28

3rd energy level holds…?

Answer 28

18

Question 29

electrons are held by..?

Answer 29

electomagnetic force

Question 30

First scientist to discover an atom, saying they were uncuttable

Answer 30

Democritus

Question 31

Atoms are ________

Answer 31

constantly moving

Question 32

The nucleus is made up of…?

Answer 32

protons and neutrons

Question 33

How do you figure out the number of protons in an element?

Answer 33

by their atomic number

Question 34

How do you figure out the number of electrons in an atom?

Answer 34

by the atomic number, same as protons

Question 35

How do you figure out the number of neutrons in an element?

Answer 35

by the mass number, subtracting the atomic number from it