LESSON 3

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

HAVE READY:

- GOOGLE CLASSROOM

- HW UPLOADED

- I-BOOK PAGE 4

HW FOR TODAY:

• IS IT UPLOADED?
• MINDMAP?

• 5 MIN TO DISCUSS IT IN YOUR GROUP

EASY

MEDIUM

DIFFICULT

TYPES OF SKELETONS:

• EXOSKELETON
• ENDOSKELETON
• LIQUID SKELETON

• METAMORPHOSIS

WHAT ARE BONES MADE OF?

• COLLAGEN
• CALCIUM/PHOSPHORUS

• DEMO

LAYERS OF BONES:

• periosteum(say: pare-ee-OSS-tee-um)
• compact bone
• cancellous (say: KAN-sell-us) bone
• the bone marrow (say: MAR-oh)

What type of skeleton do we have?

1. endoskeleton
2. exoskeleton
3. liquid skeleton

What type of skeleton do snakes have?

1. endoskeleton
2. exoskeleton
3. liquid skeleton

What type of skeleton do scorpions have?

1. endoskeleton
2. exoskeleton
3. liquid skeleton

What type of skeleton do Octopi have?

1. endoskeleton
2. exoskeleton
3. liquid skeleton

What are bones not made of?

1. collagen
2. phosphorus
3. calcium
4. sulfur

What types of skeleton mostly do metamorphosis?

1. exoskeleton
2. endoskeleton
3. liquid skeleton

HW FOR NEXT TIME:

- EXPAND ON YOUR MINDMAP

- DO THE WORKSHEET BONES