Introduction To Science

Question 1

What are the parts of a Bunsen burner

Answer 1

Rubber hose
Air hole
Adjustable collar
Barrel
Stand
Gas intake

Question 2

What 3 ways can the air hole on a Bunsen burner be used

Answer 2

Open
Half open
Closed

Question 3

Describe Bunsen flame with air hole closed

Answer 3

Yellow, sooty, flickery

Coolest flame, easily seen

Question 4

Describe Bunsen flame, air hole half open

Answer 4

Blue, yellow tip
Nearly invisible, hot
Less sooty

Question 5

Describe Bunsen flame with air hole open

Answer 5

Roars, blue with light blue cone
Hottest flame
Hottest part is tip of light blue cone

Question 6

How is the hottest part of a flame found?

Answer 6

By assessing the red glow of a nichrome wire loop

Question 7

3 Lab safety rules for personal clothing/appearance

Answer 7

Tieand tuck long hair
Secure loose clothing
Wear safety goggles

Question 8

Lab safety rules to prevent falls

Answer 8

Stools under benches
Bags under benches
Tell teacher and clear spills
No running

Question 9

How do you avoid breathing in dangerous substances

Answer 9

Don’t sniff unless teacher says

Work in fine cupboard for dangerous experiments

Question 10

Why is food and drink not allowed in the lab

Answer 10

Would contaminate experiments

Could lead to ingesting a hazardous substance

Question 11

What are the disposal rules in a lab

Answer 11

No solids in sink
No liquids in bin
Glass in a glass bin

Question 12

Why do you stand for experiments

Answer 12

Easier to step away if something unexpected or dangerous occurs

Question 13

What is
Chemistry
Biology
Physics

Answer 13

Chem - materials and uses

Bio - life and its processes

Phys- physical processes

Question 14

How is length measured

Answer 14

With a ruler
Metres
Centimetres
Millimetres

Question 15

How is volume measured

Answer 15

Length x breadth x height
Beaker
Conical flask
Measuring cylinder
Read bottom of meniscus
ml or cm cubed
L or cubic decimetre

Question 16

How is mass measured

Answer 16

g or kg
Top pan balance
Remember Tare or zero button

Question 17

How is temp measured

Answer 17

Degrees Celsius
Thermometer
Mercury (poison)
Coloured alcohol

Question 18

3 kinds of variable in an experiment

Answer 18

Independent - scientist changes it

Dependent - scientist observes it for changes

Controlled - all the conditions the scientist keeps constant so they don’t affect the experiment

SAM
CID

Question 19

Where do independent and dependent variables get charted on a graph

Answer 19

IXDY

Independent on X axis (horizontal)

Dependent on Y axis (vertical)

Question 20

What do you call a second experiment used to see if same changes occur when nothing is done at all

Answer 20

A control experiment

Question 21

What do scientists do

Answer 21

Make predictions
Do experiments
Observe and record results
Analyse results
Draw conclusions
Present findings

Question 22

What can we do to help see patterns or relationships in scientific results

Answer 22

Use charts and graphs
Tally charts 
Numerical charts
Line graphs
Bar charts
Maybe pie charts etc too