KS2 SATs KS2 Science Extended 2

Question 1

What is the difference between mass and weight?

Accepted Answer

Mass is the amount of matter in an object (measured in kg); weight is the gravitational force on that mass (measured in N)

Answer

Mass is the amount of matter in an object and is constant wherever you are (measured in kg). Weight is the gravitational force acting on that mass and varies with gravity (measured in Newtons). On the Moon, you'd weigh less but have the same mass.

Question 2

What is the function of the small intestine?

Accepted Answer

To absorb digested nutrients into the bloodstream

Answer

The small intestine is where most digestion is completed and where the nutrients from digested food are absorbed into the bloodstream. It is very long and lined with villi to maximise absorption.

Question 3

Which planet is the largest in our solar system?

Accepted Answer

Jupiter

Answer

Jupiter is the largest planet in our solar system, with a diameter of about 139,820 km — over 11 times wider than Earth. It is a gas giant and has at least 95 known moons.

Question 4

What is the scientific word for a change in speed or direction of motion?

Accepted Answer

Acceleration

Answer

Acceleration is the rate of change of velocity (speed in a given direction). An object accelerates when it speeds up, slows down (decelerates), or changes direction. Force causes acceleration (Newton's Second Law).

Question 5

What type of energy is stored in food and fuel?

Accepted Answer

Chemical energy

Answer

Food and fuel store chemical energy. When food is digested or fuel is burned, chemical energy is released and converted to other forms (e.g., heat, kinetic). This is why calories measure the chemical energy in food.

KS2 SATs Practice Test

KS2 SATs Practice Test

KS2 SATs KS2 Science Extended 2