Download Midterm Science Review 202

Midterm Science Review
202
Chapter 1: Plants
Lesson 1: What Living Things Need
By Teacher Olivia
Vocabulary
1. ________: Bits of rock and soil that help plants
and animals grow.
* Roots take in ____ from soil to help a plant make food.
2. ________: A gas found in the air we breathe.
* When plants make food, they give off ______ into the air.
* People and animals need to breathe in _______ to live.
What do living things need?
All living things grow and change.
Animals
Plants
space (to move)
breathe air
drink water
eat food
shelter
space (observe how they grow)
air
water
food (minerals)
(make their own food)
How do plants make food?
Things that plants need to make their own food are:
1) sunlight 2) air 3) water 4) minerals
3 parts of a plant to help make food
1. Leaves: take in air and use sunlight to make food
2. Stem: 1) holds up the plant.
2) It allows water and food to travel through the plant.
3. Roots: 1) hold the plant in the soil.
2) take in water and minerals.
3) store food for the plant.
* Roots always grow down *
Midterm Review
Plants Lesson 2
Plants Make New Plants
Vocabulary
flower: part of a plant that makes seeds and fruit.
seed: part of a plant that can grow into a new plant.
pollen: a sticky power inside the flower that helps make seeds.
life cycle: shows how a living thing grow, lives, makes more of its
own kind, and dies.
seedling: a young plant.
Seeds
• Seeds are made inside a flower, but sometimes a
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flower will grow seeds inside of a fruit.
The fruit protects the seeds inside.
All seeds have seed coats or fruit to protect them
as they grow.
Sees have food inside them to help the new plant
grow.
There are many different shapes and sizes of seeds.
Parts of Seeds
1. Seed coat:
a) thin covering
b) protects the seed
C) protect the seed from drying out
2. Shell: hard shells
3. Tiny plant: will grow bigger
4. Body part: store food and give food to the tiny plant
How do seeds travel?
3 ways of how seeds can travel to
different plants or places.
1) Wind
2) Water
3) Animals: bugs and birds
How do seeds grow?
The plant life cycle begins with a seed.
Seed (sprout) seedling (young plant) Adult plant
• Most plants follow the same life cycle as their parent plants.
• Different kinds of plants have different life cycles.
What do seeds need to grow?
1) a warm place
2) light
3) water
4) food
Midterm Review
Plants: Lesson 3
How Plants Are Alike and Different
Vocabulary
Trait: The way a living thing (plants or animals) look
or act.
eg. acorn  oak tree ; sunflower seed  sunflower
* Young plants (offspring) and their parent plants might
look different but will have the same shape of
1) flowers
2) petals
3) leaves
How do plants survive in
different places?
Why do plants change?
- to fit their environment (the place where they live).
- to stay safe from animals
- to stay safe from the weather
eg. Joshua tree @ desert (very dry place)
 have few or no leaves.
 store water in thick stems.
eg. banana tree @ rainforest (very wet places)
 large leaves (help to get sunlight)
Midterm Science Review
Chapter 2: Animals
Lesson 1: Animal Groups
Animal Groups
Scientists Classify animals by putting them into 2
main groups.
Backbones
(vertebrate)
mammals
amphibians
birds
fish
<
No Backbones
(invertebrate)
reptile
insect
Animals with Backbones
Mammals: 1) hair or fur
e.g. lions
2) feeds milk to its young
3) breathe through lungs
Amphibians: 1) moist skin
e.g. frogs
2) live both in water & on land
Birds: 1) feathers (only animal with feathers)
2) two wings and a beak
* Not all birds can fly, such a chicken
Animals with backbones
Fish: 1) live in water
2) gills to breathe
3) fins to swim
Reptiles: 1) scaly skin
e.g. lizard 2) cold-blooded
Animals without backbones
Insects: 1) 6 legs
2) 3 body parts
3) antennae: help them feel, taste & smell
4) hard outer shell: keep safe
Midterm Review
Animals: Lesson 2
Animals Grow and Change
Vocabulary
Life Cycle: tells how an animal starts life, grows
to be an adult, has young, and dies.
Chicken Life Cycle
Egg – chicks (can feed themselves) – adult chicken
* Male chicken: rooster ;
female chicken: hen
Butterfly Life Cycle
Egg – larva – pupa – young butterfly – adult butterfly
(caterpillar)
vocabulary
Larva: the stage after an egg hatches
• A caterpillar is the larva stage of the
butterfly.
Pupa: When a caterpillar is ready to change,
it stops moving. Its skin becomes a hard
shell.
How an animal life begins?
Eggs
Live babies
amphibian
mammals
insects
reptiles
birds
fish
• Animals born out of an egg can survive on their own.
They can see, walk, and feed themselves after they
hatch.
• Animals born as live babies need parents to feed and
care for them.
Meet Nancy Simmons
She is a scientist who studies bats.
She learn about what bats eat & where they
live.
Bats give birth to 1 baby at a time.
Baby bat is called “pup” (small & pink with
no hair)
The pup gets milk from its mother and grow
bigger.
Midterm Review
Animals: Lesson 3
Staying Alive
Vocabulary
Adaptation: is a body part or a way an animal acts that
help it stay alive.
e.g. Giraffes have long necks (why?)
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Camouflage
is a way that animals blend into their surroundings.
Keeps animals from being seen by their enemies.
1) color & 2) shape of an animal helps it hide.
* Can you find the chameleon in the second picture? Why do soldiers wear cloth like
that in the third picture.
* Ptarmigan feathers change color in summer (brown), fall (turn white) and in winter
(white to blend with the snow).
How do animals stay safe?
Ways that animals can stay safe/staying alive:
1. Stay in large groups. (fish)
2. Migrate: leave their home in winter to be in a warm
place & to find food (birds)
3. Hibernate: Sleep during the cold winter (bear)
4. Hard shell: body parts to keep them safe. (turtle)
5. Bad smell: protect them from other animals. (skunk)
6. Use their colors or shapes to help hide. (leopard)
Study Hard & Good Luck