Plant Parts & Functions
Plant & Animal Cells
Photosynthesis
Vertebrates & Invertebrates
Microorganisms, Classification & Science Tools
Midterm Challenge
100

Which part of a plant makes food?

A. Root

B. Stem

C. Leaf

D. Flower


✅ Answer: C. Leaf

⭐ Bonus ×2

100

Which organelle controls all the activities of the cell?

A. Vacuole

B. Chloroplast

C. Nucleus

D. Cell Wall


✅ Answer: C. Nucleus

⭐ Bonus ×2

100

Which gas do plants release during photosynthesis?

A. Carbon dioxide

B. Oxygen

C. Nitrogen

D. Hydrogen


✅ Answer: B. Oxygen

⭐ Bonus ×2

100

Which animal is an amphibian?

A. Eagle

B. Frog

C. Snake

D. Shark


✅ Answer: B. Frog

⭐ Bonus ×3

100

Which tool is used to see microorganisms such as bacteria?

A. Telescope

B. Microscope

C. Magnifying Glass

D. Binoculars


✅ Answer: B. Microscope

⭐ Bonus ×4

100

Which answer is NOT a characteristic of a plant cell?

A. Has a cell wall

B. Has chloroplasts

C. Has a nucleus

D. Has feathers


✅ Answer: D. Has feathers

⭐ Bonus ×2

200

Which plant part carries water and minerals from the roots to the leaves?


✅ Answer: Stem

⭐ Bonus ×3

200

Name TWO parts that are found only in a plant cell.


✅ Answer:

  • Cell wall
  • Chloroplast

⭐ Bonus ×3

200

Plants need three important things to make food.

Name all three.


✅ Answer:

  • Sunlight
  • Water
  • Carbon dioxide

⭐ Bonus ×4

200

Name the FIVE groups of vertebrates.


✅ Answer

  • Mammals
  • Birds
  • Fish
  • Reptiles
  • Amphibians

⭐ Bonus ×2

200

Why do scientists classify living things?


✅ Answer

To make living things easier to identify, study, and understand.

⭐ Bonus ×3

200

Complete the food-making process.

Plants use:

________ + ________ + ________

to make food and release ________.


✅ Answer

  • Sunlight
  • Water
  • Carbon dioxide
  • Oxygen

⭐ Bonus ×4

300

A plant has healthy roots and leaves, but it has no flowers.

What important job will the plant have difficulty doing?


✅ Answer:
Reproducing (making seeds and fruits)

⭐ Bonus ×2

300

Which organelle stores water and food inside a plant cell?


✅ Answer:

Vacuole

⭐ Bonus ×2

300

Complete the sentence.

Plants make ________ during photosynthesis and release ________ into the air.


✅ Answer:

Food (Glucose)

Oxygen

⭐ Bonus ×3

300

A scientist found an animal with these characteristics:

  • No backbone
  • Six legs
  • Exoskeleton

Which group does it belong to?


✅ Answer

Arthropod

⭐ Bonus ×4

300

A scientist found a tiny living thing that can only be seen with a microscope.

What is it called?


✅ Answer

A microorganism

⭐ Bonus ×2

300

A scientist found an organism with these characteristics:

  • Has a backbone
  • Has feathers
  • Lays eggs

What vertebrate group does it belong to?


✅ Answer

Bird

⭐ Bonus ×3

400

A student says,


"Roots make food because they are underground."


Do you agree? Explain your answer.


✅ Answer:

No.

Roots absorb water and minerals.

Leaves make food through photosynthesis.

⭐ Bonus ×4

400

Look at these clues.

This cell has:

  • Cell wall ✔
  • Chloroplast ✔
  • Vacuole ✔
  • Nucleus ✔

Question

Is it a plant cell or an animal cell?

Explain THREE reasons why.


✅ Answer

It is a plant cell because:

  1. It has a cell wall.
  2. It has chloroplasts.
  3. It has a large vacuole.

Animal cells do not have a cell wall or chloroplasts.

⭐ Bonus ×4

400

A student places two identical plants near a window.

Plant A

  • Gets sunlight
  • Gets water

Plant B

  • Gets water
  • Covered with a box (no sunlight)

Question

Which plant can make food? Explain your answer.


✅ Answer

Plant A

Because photosynthesis needs sunlight.

Plant B cannot make food because it does not receive sunlight.

⭐ Bonus ×2

400

Four students classified a penguin.

Student A:
"It's a mammal because it is warm-blooded."

Student B:
"It's a fish because it can swim."

Student C:
"It's a bird because it has feathers."

Student D:
"It's an amphibian because it lives near water."

Question

Who is correct? Explain why the other students are wrong.


✅ Answer

Student C is correct.

A penguin is a bird because it has feathers and lays eggs.

Student A ❌
Penguins are not mammals because they do not feed babies milk.

Student B ❌
Swimming does not make an animal a fish.

Student D ❌
Penguins are birds, not amphibians.

⭐ Bonus ×3

400

A student says:


"Anything that is too small to see is not a living thing."


Do you agree? Explain your answer.

✅ Answer

No.

Many microorganisms are living things.

They are too small to see with our eyes, but they grow, reproduce, and need food and water.

⭐ Bonus ×4

400

A student says:


"Plants only need water to stay alive because they can get everything else from the soil."


Do you agree? Explain your answer.


✅ Answer

No.

Plants also need:

  • Sunlight
  • Carbon dioxide
  • Water

Without sunlight and carbon dioxide, they cannot make food through photosynthesis.

⭐ Bonus ×2

500

A scientist grows three identical plants.

Plant A

  • Water ✔
  • Sunlight ✔
  • No carbon dioxide

Plant B

  • Water ✔
  • Carbon dioxide ✔
  • No sunlight

Plant C

  • Sunlight ✔
  • Carbon dioxide ✔
  • No water

Question

Which plant can make food? Explain your answer.


✅ Answer:

None of the plants can make food.

Every plant is missing one essential requirement.

Plants need all three:

  • Sunlight
  • Water
  • Carbon dioxide

⭐ Bonus ×3

500

A scientist found an unknown cell.

The cell has:

  • Nucleus ✔
  • Cell membrane ✔
  • Mitochondria ✔
  • Vacuole ✔

But it does NOT have:

  • Cell wall ✘
  • Chloroplast ✘

Question

1. What type of cell is it?

2. Explain how you know using ALL the information above.


✅ Answer

It is an animal cell.

Explanation:

  • Animal cells have a nucleus.
  • Animal cells have a cell membrane.
  • Animal cells have mitochondria.
  • Animal cells have vacuoles.
  • Animal cells do not have a cell wall.
  • Animal cells do not have chloroplasts.

⭐ Bonus ×3

500

A scientist carried out four experiments.

PlantSunlightWaterCarbon DioxideA✔✔✔B✔✘✔C✘✔✔D✔✔✘

Question

Which plant will successfully make food?

Explain why the other three plants cannot.

✅ Answer

Plant A will make food because it has all three requirements.

Plant B → No water.

Plant C → No sunlight.

Plant D → No carbon dioxide.

Photosynthesis cannot happen if any one of these three is missing.

⭐ Bonus ×4

500

A scientist discovered four unknown animals.

Animal A

  • Backbone ✔
  • Feathers ✔
  • Lays eggs ✔

Animal B

  • Backbone ✔
  • Moist skin ✔
  • Lives on land and in water ✔

Animal C

  • No backbone ✔
  • Eight legs ✔
  • Exoskeleton ✔

Animal D

  • Backbone ✔
  • Hair ✔
  • Feeds babies milk ✔

Question

Identify the correct group for EACH animal and explain your answers.


✅ Answer

Animal A → Bird

Because it has feathers and lays eggs.

Animal B → Amphibian

Because it has moist skin and lives on land and in water.

Animal C → Arthropod (Invertebrate)

Because it has no backbone, an exoskeleton, and eight legs.

Animal D → Mammal

Because it has hair and feeds babies milk.

⭐ Bonus ×2

500

A scientist collected four samples.

Sample A

Can be seen with your eyes.

Sample B

Can only be seen with a microscope.

Sample C

Has no backbone and can move.

Sample D

Has chloroplasts and makes its own food.

Question

Which sample is most likely a microorganism? Explain your answer.


✅ Answer

Sample B

Because microorganisms are so small that they usually can only be seen with a microscope.

⭐ Bonus ×3

500

A scientist found an unknown living thing.

It has these characteristics:

  • ✔ Has chloroplasts
  • ✔ Has a cell wall
  • ✔ Makes its own food
  • ✔ Does not move from place to place

Question 1

What type of organism is it?

Question 2

Give FOUR pieces of evidence to support your answer.

Question 3

Explain why it cannot be an animal.


✅ Answer

Question 1

It is a plant.

Question 2

Evidence:

  • Has chloroplasts.
  • Has a cell wall.
  • Makes its own food.
  • Does not move from place to place.

Question 3

Animals:

  • Do not have chloroplasts.
  • Do not have a cell wall.
  • Cannot make their own food.
  • Get food by eating plants or other animals.

⭐ Bonus ×4