# Science Exam Review

## 90 terms

### Meter (m)

used for length and distance measurements

### Liter (l,L)

used for volume measurements

### Volume

the amount of space an object takes up.

### Gram (g)

used for mass measurements

### Mass

the amount of matter an object has

### milli- (m)

.001 of the base unit

### centi- (c)

.01 of the base unit

### deci- (d)

.1 of the base unit

### deca- (da)

10 times larger than the base unit

### hecto- (h)

100 times larger than the base unit

### kilo- (k)

1000 times larger than the base unit

### Celsius (C)

metric scale for temperature

100°C

0°C

37°C

20°C

TRUE

Meter (m)

Centimeters (cm)

### Instrument(s) for length/distance

Meter stick, metric ruler

### What are the three areas of volume

Regular solids (a solid with staright measurable sides), irregular solids (solids that don't have straight measurable sides), liquids

Liters (l,L)

### Instruments for regular solids

metric ruler, meter stick

cm³, mL

### Formula for regular solids

length x width x height = volume

### Instrument for liquids solids

Graduated cylinder

### Instrument for irregular solids

Graduated cylinder

### Method used to find volume for irregular solids

Water Displacement Method

### How to Use the Water Displacement Method

1. Put water in your cylinder and record level
2. Gently slide object into the cylinder read new level and record
3. Subtract the old level from the new one
4. Difference is you volume
5. Go to sink and take out object

grams (g)

### Instrument for mass

Triple Beam Balance

grams (g)

### Density

the relationship of mass and volume; how much mass is in a unit of volume

water

### Density identifies....

matter becuase, each type of matter has its own unique density

### Formula for finding density

Density = Mass/Volume

1.00 g/mL

10

1500 hrs.

### What should you do after using the instrument for mass?

Zero out the weights

### What is the meniscus?

The curved water level in a graduated cylinder

The bottom of it

### Step 1

Figure out problem/question
-use five senses
-observe the world around you

### Step 2

Reasearch - educate yourself about your problem/ question
- library, computer, ask others, past experiences

### Step 3

Hypothesis - an educated guess on how to solve your problem/ answer your question

### Step 4

Experiment - test your hypothesis
- observe
-record data (measurements)

### Step 5

Analyze your results - make sense out of the experiment
-data table and graph

### Step 6

Conclusion - Was the problem solved/ question answered?
- why/why not?

### Step 7

Communicate Results
- tell other people what happened

### Manipulated variable (independent)

Factor being tested

### Responding Variable (dependendent)

the factor that is unknown until the hypothesis is tested

### constant

factors you need to keep the same in an expirement

### control

a group used with what u would regularly do

0100 hrs.

0200 hrs.

0300 hrs.

0400 hrs.

0500 hrs.

0600 hrs.

0700 hrs.

0800 hrs.

0900 hrs.

1000 hrs.

1100 hrs.

1200 hrs.

1300 hrs.

1400 hrs.

1500 hrs.

1600 hrs.

1700 hrs.

1800 hrs.

1900 hrs.

2000 hrs.

2100 hrs.

2200 hrs.

2300 hrs.

2400 hrs.

### an easy way to remember time

for a.m. add a 0 in front and two 0's at the end for p.m. just add 12 and two 0's at the end

### List All Lab Saftey Rules

1. Follow all directions; written and plural
2. Backpacks should be under table and laptops in the cabinet
3. When there is equipment and/or items on your table, do not touch until instructed to do so.
4. Safety glasses will be worn during all labs.
5. Be aware of glassware on all tables.
6. At sinks turn on water first then fill beakers, cylinder... etc.
7. When using fire......
a. all long hair must be tied back
b. don't lean into open flame
c. don't reach over open flame
d. don't put fingers into flame

### hypothesis

an educated guess based on predictions

### inference

a conclusion made after an observation without testing

### prediciton

act of reasoning about the future based on past experiences

### graph

allows scientist to visually compare/analyze data

Mrs. Mclean

Mr. Schumacher

Ms. Arcuri

Berkeley

### Library hours

Monday- Thursday = 7:30 am- 5:00 pm
Friday = 7:30 am- 4:00

### List All Online Databases We Used in Science

Ebsco Host
Oxford English Dictionary
AccessScience
World Book
Brittanica

### How long can a book be checked out for?

21 days (3 weeks)