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Science: Elementary School: Grades 3, 4 and 5 Quiz - Life Processes (Questions)

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Are you familiar with MRS. NERG? Many people use these letters as a reminder of the seven scientific terms - Movement, Reproduction, Sensitivity, Nutrition, Excretion, Respiration and Growth. Anything that is alive must demonstrate all seven of these processes. Believe it or not, everything that is alive has senses of some kind - even plants. They can tell in which direction the Sun is in, and they also know the difference between up and down!

Which of the following is true?

[ ]	Only animals share the seven life processes
[ ]	Only plants share the seven life processes
[ ]	Plants and animals share all seven life processes
[ ]	Plants and animals only share four life processes

Whales eat plankton and plants make their own food from sunlight. These are examples of which life process?

[ ]	Reproduction
[ ]	Nutrition
[ ]	Movement
[ ]	Sensitivity

Which is not an example of reproduction?

[ ]	A dandelion produces and disperses its seeds
[ ]	A cat has kittens
[ ]	A large rock is crushed into thousands of small pieces of gravel
[ ]	A strawberry plant runner grows a new plantlet

Sunflowers were given their name because they turn to face the Sun. This is an example of which life process?

[ ]	Respiration
[ ]	Growth
[ ]	Excretion
[ ]	Movement

Plants need to get rid of oxygen and animals need to get rid of carbon dioxide. What is this process called?

[ ]	Respiration
[ ]	Growth
[ ]	Excretion
[ ]	Reproduction

If you accidentally touch a very hot radiator and pull your hand back quickly, you are demonstrating which life process?

[ ]	Sensitivity
[ ]	Growth
[ ]	Nutrition
[ ]	Respiration

The food that animals eat cannot be used directly by cells. What is the process of turning food into energy called?

[ ]	Excretion
[ ]	Nutrition
[ ]	Respiration
[ ]	Growth

Which of the following demonstrates sensitivity in plants?

[ ]	A plant producing food through photosynthesis
[ ]	A sycamore seed falling far from the parent tree
[ ]	A spindly tree in a dark forest growing quickly towards the light
[ ]	A weeping willow crying at sad films

Many single-celled organisms grow and then divide into two cells. What is this is an example of?

[ ]	Excretion
[ ]	Reproduction
[ ]	Respiration
[ ]	Nutrition

10.

Food provides energy for movement and other life processes. What else does food allow a living organism to do?

[ ]	Rest
[ ]	Grow
[ ]	Camouflage itself
[ ]	Become a predator

Science: Elementary School: Grades 3, 4 and 5 Quiz - Life Processes (Answers)

Which of the following is true?

[ ]	Only animals share the seven life processes
[ ]	Only plants share the seven life processes
[x]	Plants and animals share all seven life processes
[ ]	Plants and animals only share four life processes

All living organisms, which includes all plants and animals, share the seven life processes

Whales eat plankton and plants make their own food from sunlight. These are examples of which life process?

[ ]	Reproduction
[x]	Nutrition
[ ]	Movement
[ ]	Sensitivity

Nutrition means food - all living organisms need food

Which is not an example of reproduction?

[ ]	A dandelion produces and disperses its seeds
[ ]	A cat has kittens
[x]	A large rock is crushed into thousands of small pieces of gravel
[ ]	A strawberry plant runner grows a new plantlet

Reproduction is when living organisms produce young

Sunflowers were given their name because they turn to face the Sun. This is an example of which life process?

[ ]	Respiration
[ ]	Growth
[ ]	Excretion
[x]	Movement

All living organisms move. It can be hard to observe the movements of plants, but the sunflower makes a good example because it is easier to observe than most other plants

Plants need to get rid of oxygen and animals need to get rid of carbon dioxide. What is this process called?

[ ]	Respiration
[ ]	Growth
[x]	Excretion
[ ]	Reproduction

Excretion, or elimination, is the removal of all waste products

If you accidentally touch a very hot radiator and pull your hand back quickly, you are demonstrating which life process?

[x]	Sensitivity
[ ]	Growth
[ ]	Nutrition
[ ]	Respiration

Sensitivity is how plants and animals detect changes in their surroundings

The food that animals eat cannot be used directly by cells. What is the process of turning food into energy called?

[ ]	Excretion
[ ]	Nutrition
[x]	Respiration
[ ]	Growth

Because oxygen is essential for this life process, people often refer to breathing as 'respiration'

Which of the following demonstrates sensitivity in plants?

[ ]	A plant producing food through photosynthesis
[ ]	A sycamore seed falling far from the parent tree
[x]	A spindly tree in a dark forest growing quickly towards the light
[ ]	A weeping willow crying at sad films

Plants respond to heat, light, moisture and other stimuli

Many single-celled organisms grow and then divide into two cells. What is this is an example of?

[ ]	Excretion
[x]	Reproduction
[ ]	Respiration
[ ]	Nutrition

The cell makes an exact copy of itself

10.

Food provides energy for movement and other life processes. What else does food allow a living organism to do?

[ ]	Rest
[x]	Grow
[ ]	Camouflage itself
[ ]	Become a predator

The body uses food to make itself bigger