YR2_T2_LSN1

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

Get ready

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

YR2_T2_LSN1

Bean project + Topic 2.1 Energy sources 

Plan for today

• Introduction Bean project
• Theory T2.1 energy sources

Bean project: chose your exp

This project is about growing a bean. The goal is to measure the growth of the seeds under different conditions. You may choose one of the following sets of conditions to test your bean growth:

Option 1: One half of the seeds will be put in the dark, the other half will grow in daylight. 

Option 2: One half of the seeds will grow in daylight, the other half in artificial light.

Option 3: One half of the seeds will be in a clear glass jar and the other half in a jar of a different color.

Option 4: Create your own situations!

You will work in pairs: each of you is responsible for one of the jars!

Bean project: things you learn

During this project you will learn the following things:

• Making an accurate scientific drawing.
• Working with formulas and graphs in google spreadsheets. 
• Carrying out a series of measurements.
• Writing a lab report.

Bean project: HW next week

Fill in the LessonUp lesson ''Bean project LSN1''

• Choose your partner and experiment
• Create a research question 
• Research a hypothesis
• Make a photo of your set-up

Bean project: overview

• Project you will do at home (in pairs)
• You chose your own experiment
• Every person will get 4 beans (at the end of the lesson)
• Day 1 starts when your beans start to grow. Then take pictures for 14 days, every day.

All information about the project can be found in the classroom in the document ''Bean project''

YR2_T2_LSN1

Bean project + Topic 2.1 Energy sources 

Learning goals

I can:

• Give examples of different energy sources
• Identify different forms of energy
• Identify the type of energy conversion that takes place
• Explain the difference between renewable and non-renewable energy and identify which one applies
• Explain the difference between sustainable and non sustainable energy sources and identify which one applies

Key words

• Energy
• Law of conservation of energy
• Renewable 
• Non-renewable
• Sustainable 
• Non-sustainable

Forms of energy

Energy

Most common forms of energy:

Law of conservation of energy

Energy is not created or destroyed

Energy can be transformed from one form 

to another

What is “lost” energy?

Energy is never destroyed, but some energy conversion is not useful for us

Example: Your macbook heating up, instead of converting the electrical energy to only light and sound → we “lose” energy in the form of heat

Electrical energy

Electrical energy is “produced” in a power station by converting energy

• Chemical energy ⇒ thermal energy(heat)

by burning coal or gas

• Thermal energy(heat) ⇒ kinetic energy

Heating water produces steam, the steam is used 

to rotate the steam turbine

• Kinetic energy ⇒ electrical energy

This happens in the generator, similar 

to what happens in a dynamo

Energy sources

Renewable = renews itself

non-renewable =  runs out, wont be able to use it forever

Homework 

Next week:

• Read the Bean project manual (Introduction/growing the beans) (classroom)
• Complete the ''Bean project LSN1'' LessonUp lesson
•  Prepare labjournal for ''Heat of combustion of a peanut''

Week after testweek:

• Make exercises 1-11 of topic 2.1 in your workbook