4th Grade Science Test 2 Flashcards
Green plants can make their own food because they contain
chlorophyll
If there were no green plants on earth would people and animals be able to live?
No
What do plants put into the air for man to breathe?
oxygen
green plants make their food by a process called?
photosynthesis
When you eat a carrot, you are eating what part of the plant?
the root
When you eat broccoli, you are eating what part of a plant?
a flower
Every seed contains what?
a new living plant
A dandelion is an example of a plant whose seeds are spread by what?
the wind
Dormant seeds are: dead or alive?
alive
When a seed ____, it sprouts.
germinates
Can tomatoes be eaten raw?
yes
What is the poison in tobacco called?
nicotine
Plants which cannot make their own food are called what?
fungi
Most seeds ripen and are carried away from the parent plant in this season.
fall
the leaves of the rhubarb plant are ____
poisonous
Be able to identify the four parts of a flower from a picture.
petal
stamen
pistil
sepal
What is another name for a tree’s stem?
trunk
Do a tree’s roots tell its age?
No
List three facts about a tree’s roots
Roots anchor trees in the ground.
Roots absorb water and minerals.
Root systems are at least as large as the spread of the crown.
Which part of a tree makes the tree’s food and bears fruit?
crown
Which of the following trees is a broadleaf tree? fir, hemlock, spruce, elm
elm
Which of the following trees is an evergreen tree? elm, spruce, oak, maple
spruce
What is the name of the fruit produced by an oak tree?
acorns
What name describes trees that lose their leaves in the fall?
deciduous
How can you tell the age of a tree?
by counting the annual rings
sometimes mistakenly called a yellow daisy
black-eyed Susan
has yellow ray flowers and no disk flowers
dandelion
a tall plant with flowers that turn to face the sun
sunflower
a blue flower whose roots can be ground to make a beverage
chicory
any plant that grows where it is not wanted
weed
a poisonous plant
poinsettia
Know what these birds look like (look in your book and study the pictures).
cardinal
purple finch
mockingbird
scissor-tailed flycatcher
List the three main parts of every seed and explain the job each part has or does.
embryo-the new plant
stored food-nourishes the new plant (embryo)
seed coat or covering-protects the new plant (embryo)
Know what these flowers look like (look in your book at the pictures and study them).
lady's slipper western red lily fireweed white trillium wild rose pitcher plant
Know what these flowers look like by studying them in your book.
dandelion salvia daisy goldenrood iris marigold black-eyes Susan Queen Anne's lace chrysanthemum sunflower cosmos petunia
