YR2_T1_LSN14

• Science
• Middelbare school
• havo, vwo
• Leerjaar 2

Get ready

• Your Macbook (join the lessonup)
• Your notebook.
• Your textbook.
• Pen & highlighter
• Calculator

YR2_T1_LSN 14

Recap Topic 1 + Labjournal

Recap Topic 1

• 1.1 Substances
• 1.2 Measuring mass and volume
• 1.3 Density
• 1.4 Light and vision
• 1.5 Sound and hearing

HOMOGENOUS

HETEROGENOUS

1.1 - Separation methods:

• Extraction

Separation based on difference in solubility

• Filtration

Separation based on difference in particle size

• Evaporation

Separation based on difference in boiling point

1.2 - Volume:

Regular shapes you can calculate the volume using a formula

Calculate the volume of the sphere:

(Round your answer to 2 decimal places.

Answer:

4/3 x pi x 6 x 6 x 6  = 904,78m³

What is the volume of the bolt?

Answer:

a = 150mL

b = 180mL

180 - 150 = 30mL

1.3 Density calculations

A box has the following measurement:
mass = 132 g & volume = 12 cm³
What is the density?

Answer:

/12                                                     /12                                so: 11g/cm³

Mass	Volume
132g	12cm³
11g	1cm³

Lens

Iris

Cornea

Eye muscle*

Choroid*

Retina

Fovea*

Blind spot

Optic nerve

Sclera

Vitreous body

auricle

outer ear canal

eardrum

eustachian tube

cochlea

hammer*

stirrup*

anvil*

Any questions about topic 1?

Labjournal 

From now on we will use a Labjournal for the skills lessons

Why?

• Organisation 
• You can easily look back at previous experiments
• You are better prepared for the skills lessons

Labjournal 

From now on we will use a Labjournal for the skills lessons

Why?

• Organisation 
• You can easily look back at previous experiments
• You are better prepared for the skills lessons

Labjournal Notebook (A4 lines)

Front: 

• Name 
• Class

First page(s): 

Table of content

• Title, 
• Page number 
• Date

Labjournal Notebook (A4 lines)

For each experiment:

• Title and date
• Research question and Hypothesis
• Materials
• Method
• Safety (if mentioned on your worksheet)

Method:

You can write or draw your steps:

Results

You can write down or glue the results from the worksheet in your labjournal

Make sure you are prepared

The TOA will check all your labjournals before entering the lab

NO PREPARATION = NO ENTRY

Homework:

Skills lesson:

• Make labjournal preparation for the next skills lesson (see magister)

Prepare test for testweek:

• Make a planning for science

Tip: make sure you understand all learning goals!