2HVT_rekenen+intro Chapter 2

• Nask / Biologie
• Middelbare school
• havo
• Leerjaar 2

Recap Ch 1 + Intro Ch 2

Physics and chemistry are about.....?

1. animals
2. non-living nature
3. formulas
4. living nature

What is an indicator?

An indicator...

lets you investigate 

wheter a specific substance 

is present or not.

Examples??

What happens when you open the gas control knob (valve)?

To heat a large volume, you can use the roaring blue flame. Which knob should you use to get this specific flame?

Where is the flame the hottest?

1. A
2. B
3. C
4. everywhere the same temperature

Do you check your anwers (to the homework questions) ?

1. Yes, always
2. No, never
3. Sometimes
4. Answers? Where?

1 cm = ??? m

1. 100
2. 10
3. 0,1
4. 0,01

25 kg = .... g?

1. 25000
2. 2500
3. 0,25
4. 0,025

46,9 ml = .... L ?

1. 0,00469
2. 0,469
3. 0,0469
4. 4,69

Chapter 2

Substances

Name a substance you have used today

Name your favourite substance

Which term below is a substance property

1. colour
2. mass
3. volume
4. size

This hazard
symbol means:

1. inflammable
2. toxic
3. harmful, irritant
4. explosive

Next week

Homework check! (receive bonus points!)

Chapter 1 + Paragraph 2.1 (questions 1-9)

Making homework in class:

Phone in phone bag

Sound level : whispering (only with nextdoor neighbour)

Online? (only use relevant websites)

Try to anwer questions as completely as possible! 
Ready? --> Check your answers (teams / website)