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How do animals grow?
How do animals grow?
Match the vocabulary words we’ve used before to the definitions.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Nanoscale | arrow_right_alt | The size that we can see with our eyes |
Observable scale | arrow_right_alt | Stuff that things are made of |
Matter | arrow_right_alt | A group of atoms joined together in a particular way |
Molecule | arrow_right_alt | A tiny piece of matter that is too small to see |
Atom | arrow_right_alt | The size where objects are too small even to see with a microscope. Atoms and molecules are this size. |
How do animals grow?
Read each statement and choose whether you agree or disagree.
Check For Understanding:
Some things are made of molecules, and other things are made of matter.
Read page 9 and answer the question to the right.
All that new bone, muscle, blood, and skin doesn't appear from nothing. Since an animal is made of matter, when it grows it needs to add more matter to its bones, muscles, and other parts. That's how animals grow.
What do animals need to do to grow?
Read page 10 and answer the question to the right.
The new matter needed for growth comes from what an animal eats. Food is also made of matter. When an animal eats food, it is eating billions and billions of atoms and molecules. These atoms and molecules are all matter that the animal uses to grow. Inside the animal's body, the food molecules are broken down and used to build new molecules that make up bone, blood, muscle, skin, and other body parts.
Where does the matter that animals use to grow come from?
How do animals use matter to grow their body?
Read page 11 and answer the question to the right.
Not all the matter that an animal eats gets added to the animal's body. Some of the matter isn't used by the animal. This matter ends up as different kinds of waste, including droppings. More important, the animal uses some of the food matter to get energy. (Animals need every to move and do all of the things animals do.) When an animal uses matter to get energy, that matter is changed and released as gases into the air.
What is another important thing animals get from food matter?
What happens to the food matter that animals don't use?
What are animals made of?
Sentence starter: Animals are made of _____________________.
What do animals do to grow their bodies?
Sentence starter: Animals __________ ___________ to grow their bodies.
What is food made of?
Sentence starter: Food is made of _____________________.
Check For Understanding:
Only living things are made of matter.
Animals can’t grow if they don’t eat food.
Check For Understanding:
Food is made of matter.
All the matter an animal eats is added to its body.
