SCIENCE PSR 1: YEAR 2020

______________ comes from plants that help to push through the digestive system.

• Sugar

• MInerals

• Roughage

• Carbohydrates

The three most harmful substances in cigarette smoke are:

• Tar, nicotine and oxygen

• Tar, nicotine and water vapour

• Tar, nicotine and carbon dioxide

• Tar, nicotine and carbon monoxide

Tags

NGSS.HS-PS1-2

Which of the following actions involves a frictional force?

• Flying a kite

• Pushing a box

• Stretching a box

• Skydiver jumping from a plane

Which of these musical instruments produces sound by blowing?

• Drum

• Piano

• Guitar

• Harmonica

Teacher Syll posed a question to her pupils, "What is the young of a fish called? Who responded correctly?

• Amal: "Cub"

• Amani: "Calf"

• Kashfi: "Fry"

• Wafri: "Maggot"

How does the porcupine usually protect itself from being eaten?

• It has fast legs for running away.

• It has a tail for swinging on trees.

• It has sharp spines covering its body.

• it has sharp teeth to bite bigger animals.

Which of the following properties of the materials is correct?

• They are soluble in water.

• They are transparent to light.

• They are attracted to a magnet.

• They are good conductors of heat.

Tags

NGSS.MS-PS1-2

The figure shows four vertebrate animals. Which two vertebrates belong to the same group of animal classification.

• W and X

• W and Z

• X and Y

• X and Z

Tags

NGSS.MS-LS4-2

Rabiyatul placed a bowl of hot soup on the table. After 2 hours, the soup became cooler. Which of the statements below is correct?

• The bowl was frozen.

• The hot soup lost heat.

• The hot soup gained heat.

• The surrounding air lost heat.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

NGSS.MS-PS3-5

When only Switch 3 is closed, _____________________________.

• bulb Z light up.

• bulbs X and Y light up.

• bulbs X, Y and Z will not light up.

• bulbs X, Y and Z will not light up.