YR1_T2_LSN6

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

Get ready

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

Topic 2 Lesson 6

Plan for today

• Review T2.1 - 2.3
• Ask questions
• Study for test

2.1 Learning goals

• I understand and can read food chains
• I can distinguish the different roles in a food chain (producer, primary consumer, secondary consumer, tertiary consumer and quaternary consumer)
• I understand the energy pyramid and understand why energy gets lost

PRODUCERS

CONSUMER

FOODWEB

FOODCHAIN

Shows one possible path of energy flow

Organism that feeds on other organisms

Shows all feeding relationships in an area

Organism that uses photosynthesis

Food chain

Producers are plants, because they 

produce food with photosynthesis

Consumers are animals that eat other 

organisms.

We use the words primary, secondary and 

tertiary to describe if they are the first, 

second or third consumer in the chain

Food chains and food webs

Food chain

Food web

Energy pyramid

The energy pyramid shows that you 

lose energy with every step in the food chain. 

This is because:

Consumers don’t eat the entire organism

Organisms use up some of the energy 

Organisms produce waste that has some energy. 

2.2 Learning goals

• I know the names of the 7 types of nutrients
• I know what the 7 types of nutrients are used for in the body
• I know in what kind of foods the different nutrients are present 
• I can read food labels and understand what calories, quantities and daily value mean
• I know what food indicators are and understand how they can be used to test the food for certain nutrients

Food molecules

Food is made out of molecules. 

Nutrients are food molecules. 

There are seven types of nutrients:

• Carbohydrates
• Proteins
• Lipids
• Minerals
• Vitamins
• Water
• Fiber

GROWTH & REPAIR

ENERGY

STAYING HEALTHY

PROTEINS

CARBOHYDRATES

FATS

MINERALS

WATER

FIBRE

VITAMINS

FOOD LABLES

Shows:

Quantities: amounts

Calories: energy in the food

Daily value: recommended amount of that nutrient per day

INDICATORS

Indicators show (indicate) if a certain substance is present or not

Which food indicators do you remember?
And what do they indicate?

2.3 Learning goals

• I know the steps of the digestive system
• I know which organs the food goes through and what happens in those organs with the food
• I know the three different types of teeth and what they are used for.
• I understand the difference between a carnivore, omnivore and herbivore and can recognize them by their teeth

Steps of digestion

• Ingestion is putting food in your mouth.
• Digestion is the process of breaking down large molecules into smaller ones. 
• Egestion is the process of removing waste products (pooping)

rectum

liver

mouth

stomach

oesophagus

large intestine

small intestine

Enzymes

Amylase:  in saliva

Protease:  gastric juice

Lipase:   small intestine

Teeth

There are 3 different types of teeth:

Incisors - front teeth that bite off pieces of food

Canines - also help bite off food, predators 

                     use them to hold their prey.

Molars - back teeth that grind our food into smaller pieces

Questions?

Do you have questions about the topics? 

Or about the homework? (The answers are in the classroom)

Prepare for test 

Make sure you understand the learning goals for each topic (you can see them in the textbook and lessonup lessons)

You can prepare for this quiz by studying the following:

• LessonUp lessons 
• Notes
• StudyGo glossaries 
• Textbook