A bear's claws and a skunk's smell are two ways that
A) animals get air
B) animals stay safe
C) animals hide
B) animals stay safe
Jess has two plants. She measures how much the plants grow each week. Jess wants to find out if plants need light to grow. How can she find out?
A) Place a box over one plant.
B) Place one plant in a tiny pot.
C) Give water to only one plant.
A) Place a box over one plant.
Plants need nutrients to grow. What are nutrients?
A) a kind of water
B) materials in the soil
C) energy from the Sun
B) materials in the soil
What part of the plant makes the seeds?
Flower
Why might roots be below the ground?
Water and nutrients are in the soil Roots take in the water and nutrients.
If you cut the roots off of a plant, it could not get
A) water
B) light
C) air
A) water
What are two things that a plant's roots take in?
A) sunlight and air
B) water and nutrients
C) seeds and soil
B) water and nutrients
How does water from the soil get to a plant's leaves?
A) Water moves from the roots to the stem to the leaves.
B) Water moves from the stem to the roots to the leaves.
C) Water moves from the leaves to the roots to the stem.
A) Water moves from the roots to the stem to the leaves.
The _____________________ helps hold up the plant.
Stem
How do the roots and stem of a plant work together?
The roots take in water from the ground, and the stem carries it to the rest of the plant.
Which kind of living thing uses gills to get air?
A) fish
B) bird
C) cow
A) fish
What body part do horses and cows use to breathe?
A) nose
B) gills
C) ears
A) nose
Air, water, light, and nutrients are all
A) things plants need to grow.
B) things animals need to grow.
C) things needed by soil.
A) things plants need to grow.
____________________ are materials in soil plants need to grow.
Nutrients
How do young animals learn to find food?
Their parents teach them to hunt.
How can you tell if a plant needs more water?
A) Its leaves are sagging.
B) It grows too big for its pot.
C) Its leaves are green and healthy.
A) Its leaves are sagging.
A plant's leaves turn yellow if it does not get enough _____________________.
sunlight
Which plant part makes seeds?
A) flower
B) stem
C) root
A) flower
roots
Why might a tree need more water than a rose bush?
The tree is bigger. It needs more water to grow.
A shelter is where living things
A) can be safe
B) find food
C) drink water
A) can be safe
Which animals needs more food?
A) a dog
B) a mouse
C) a cow
C) a cow
A plant's _____________________ take in water and nutrients from the soil.
A) flowers
B) roots
C) stems
B) roots
_____________________ is the loose top layer of the Earth.
Soil
What might happen to a plant if its roots were cut?
It would not be able to take in water. It might die.