YR1_T1_LSN8

• Science
• Middelbare school
• havo, vwo
• Leerjaar 1

Get ready:

• Your Macbook (KWIZL)

Plan for today:

• Discuss Quiz (15 min)
• Homework check T1.4 (15 min)
• Explanation T1.5 (25 min)
• Short break (5 min)
• Homework (remaining time)

Common mistakes

List 2 properties of the substance (coca-cola) seen in the picture.

Common mistake:         Color, smell,  liquid

Correct answer:              Brown color,  sweet smell,  

                                                liquid at roomtemperature

Common mistakes

List 3 properties that are different for metals.

Common mistake:      Weight

Correct answer:           Density 

Common mistakes

 Show all your calculations and give your answer a unit.

Common mistake:     No calculation, no units

Correct answer:         Write down every step you do 

                              Always write down the correct unit for the answer

Discussing the Quiz

• Check your answers
• Do you understand your mistakes?

Write down in your notebook what 

you can do better next time

More question about the Quiz?

Plan for today:

• Discuss Quiz (15 min)
• Homework check T1.4 (15 min)
• Explanation T1.5 (25 min)
• Short break (5 min)
• Homework (remaining time)

Homework for today:

• Answers for topic 1.4 are in the classroom
• Correct your answers in a different color (Answer wrong? write down the correct answer in the different color)
• I will call people to show me their homework (Everyone will be called eventually)

Plan for today:

• Discuss Quiz (15 min)
• Homework check T1.4 (15 min)
• Explanation T1.5 (25 min)
• Short break (5 min)
• Homework (remaining time)

Topic 1: Observing the World

Learning Goals:

• I can explain what a light wave is and how it travels.
• I know what all the colours of the visible spectrum are, in order from lowest to highest frequency.
• I know that white light is a combination of all colours in the visible spectrum.
• I know what colours of light are reflected or absorbed based on an object’s colour.
• I know that white objects reflect all light and black objects absorb all light..
  

Key words:

• light
• visible spectrum
• reflect
• absorb

Light

Is a form of energy that travels in waves

Unlike sound, light does not need molecules to help it spread.

Allows people and animals to see things.

Light sources

Natural light                                                         

• The sun and stars
• Fire
• Lightening

Artificial light

• Lamp
• Telephone screen
• Laser

Visible spectrum

All the colors we can see with the naked eye.

Different colors of light have different frequencies.

Which color has the lowest frequency? The highest?

White light

White light is made of all the colors of the visible spectrum.

We can split white light into its colors by using a prism.

How do we see color?

The human eye sees color when light bounces (reflects) off an object and goes into our eye. The color of light that gets reflected is the color that we see.  

All other colors of light get 

absorbed by the object so that 

we don’t see them.

Seeing black and white

White objects reflect all the colors 

which together make the color white.

Black objects absorb all the colors 

so there is nothing left to see.

Colored light

Different colors of light can have an effect on what color an object appears to be.  

Learning Goals:

• I can explain what a light wave is and how it travels.
• I know what all the colours of the visible spectrum are, in order from lowest to highest frequency.
• I know that white light is a combination of all colours in the visible spectrum.
• I know what colours of light are reflected or absorbed based on an object’s colour.
• I know that white objects reflect all light and black objects absorb all light..
  

Plan for today:

• Discuss Quiz (15 min)
• Homework check T1.4 (15 min)
• Explanation T1.5 (25 min)
• Short break (5 min)
• Homework (remaining time)

Short break

If you need to go to the toilet, please let me know now!

Otherwise stay in the classroom!

Plan for today:

• Discuss Quiz (15 min)
• Homework check T1.4 (15 min)
• Explanation T1.5 (25 min)
• Short break (5 min)
• Homework (remaining time)

Homework:

• Complete the exercises on page E34 (next lesson)
• Do the LessonUp lesson ''Skills-How to work with microscopes'' (after autumn break)
• Study glossary Topic 1.5 on StudyGo