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Worksheets

Science Topics

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the basic structural and functional unit of all living organisms?

a)

organ

b)

cell

c)

molecule

d)

tissue

2.

In which organelle does photosynthesis occur?

a)

mitochondria

b)

chloroplasts

c)

nucleus

d)

endoplasmic reticulum

3.

What is the process by which plants make their food using sunlight?

a)

Solarization

b)

Photosynthesis

c)

Chlorophyll

d)

Sunfeeding

4.

What is the term for a substance that speeds up a chemical reaction without being consumed in the process?

a)

facilitator

b)

enhancer

c)

catalyst

d)

accelerator

5.

What type of energy is produced by the flow of electric charge?

a)

Thermal energy

b)

Solar energy

c)

Electrical energy

d)

Kinetic energy

6.

What is the SI unit of electric current?

a)

D

b)

A

c)

B

d)

C

7.

Which simple machine is a sloping surface that reduces the amount of force required to move an object?

a)

Inclined plane

b)

Tilted surface

c)

Angled ramp

d)

Slanted plane

8.

What is the formula for calculating voltage in an electrical circuit?

a)

V = I * R

b)

V = I / R

c)

V = R / I

d)

V = I + R

9.

What is the process by which cells break down glucose to release energy?

a)

Cell division

b)

Photosynthesis

c)

Protein synthesis

d)

Cellular respiration

10.

Which organelle is known as the powerhouse of the cell?

a)

Mitochondria

b)

Nucleus

c)

Ribosome

d)

Endoplasmic reticulum

11.

What is the law that states energy cannot be created or destroyed, only transformed from one form to another?

a)

Law of Energy Destruction

b)

Law of Energy Transformation

c)

Law of Energy Creation

d)

Law of Conservation of Energy

12.

What is the process by which plants release oxygen into the atmosphere?

a)

Photosynthesis

b)

Respiration

c)

Fermentation

d)

Transpiration

13.

Which simple machine consists of a wheel with a groove in which a rope or chain can run to change the direction of the force?

a)

Screw

b)

Pulley

c)

Wedge

d)

Lever

14.

What is the term for the process of combining two or more elements to form a new substance?

a)

fusion process

b)

chemical reaction

c)

substance synthesis

d)

elemental fusion

15.

What is the unit of power in the International System of Units?

a)

watt

b)

ampere

c)

joule

d)

volt

16.

Which type of chemical reaction involves the combination of two or more substances to form a new compound?

a)

Synthesis reaction

b)

Decomposition reaction

c)

Single displacement reaction

d)

Combustion reaction

17.

What is the formula for calculating work done?

a)

Work = Energy x Power

b)

Work = Mass x Acceleration

c)

Work = Force x Distance

d)

Work = Velocity x Time

18.

Which part of the cell contains the genetic material and controls the cell's activities?

a)

nucleus

b)

ribosomes

c)

cytoplasm

d)

mitochondria

19.

What is the law that states for every action, there is an equal and opposite reaction?

a)

Galileo's Law of Falling Bodies

b)

Einstein's Theory of Relativity

c)

Darwin's Natural Selection

d)

Newton's Third Law

20.

What is the process by which cells use oxygen to produce energy from food?

a)

Photosynthesis

b)

Protein synthesis

c)

Cellular respiration

d)

Cell division