Chapter 1 Science Skills

Which of the following is a natural phenomenon?

• Dam construction

• Volcanic eruptions

• Use of mobile phones

• Discovery of new medicines

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

Which of the following represents the prefix value of kilo?

• 10

• 100

• 1000

• 1000 000

Which statement is true about mass?

• the total volume of an object

• the total surface area of an object

• the gravitational force acting on an object

• the amount of matter contained in an object

Tags

NGSS.MS-PS1-5

diagram above shows a hazard symbol. what is the meaning of this symbol?

• flammable

• irritant

• explosive

• poisonous

Table above shows the volumes of a few marbles measured using the water displacement method. What is the volume of 5 marbles?

• 3 cm³

• 9 cm³

• 15cm³

• 21cm³

The following information shows the steps involved in a scientific investigation

J : making an observation

K : Making a conclusion

L : analysing data

M : collecting data

Which of the following is the correct step in the scientific investigation?

• J, M, K, L

• J, M, L, K

• M, J, K, L

• M, J, L, K

Diagram above shows three types of bottles with different labels. What are the chemicals that might contain inside bottle P, Q and R?

• P: chloroform, Q: ethanol, R: mercury

• P: Radium, Q: mercury, R: Pottasium

• P: Benzene, Q: potassium, R: radium

• P: lead, Q: petrol, R: chloroform

Tags

NGSS.MS-PS1-2

which of the following converting unit of base quantity is correct?

• 1.9 kg -> 19 000 g

• 89 g -> 0.089 kg

• 170 mm -> 0.017 m

• 450 cm -> 45 m

which of the following apparatus can be used to measure the volume of liquids?

• measuring cylinder , test tube

• beaker, stopwatch

• test tube, pipette

• measuring cylinder, beaker

choose the correct match

• length -> kilometre -> km

• mass -> gram -> g

• temperature -> degree celcius -> ^oC

• electric current -> ampere -> A