Scientific skills

Scientific skills

Tc Wan Yusra

What is scientific skills?

• skills using the scientific methods in carrying out an investigation

• consists of science process skils and manipulative skills

let's start

lets watch a video first

Identifying the problem

Does the amount of water in the glass affect the pitch of the sound made by tapping it with the spoon?

making the hypothesis

the greater the amount of water inside the glass, the lower the pitch of the sound made by tapping it with spoon.

Planning an experiment

• determine the control variables

• determine the apparatus and material needed

• determine the steps to cinduct the experiment

• determine method of collecting data

• determine method of analysing data

determine the control variables

• manipulated variable:the amount of water inside the glass

• responding variable: the pitch of sound made by tapping the glass with spoon

• constant variable: the size and shape of the glass, the force used to tap the glass

Determine apparatus and materials needed

• 3 drinking glasses

• 1 liter of tap water

• steel spoon

Determine steps to conduct the experiment

• pour a glass with water to the brim

• pour another glass with water half of the glass

• pour a little bit of water in the last glass

• tap the glass filled with water and listen to the pitch of the sound

• repeat tapping the other two glasses and compare the pitch of the sound made

• record your observation

determine method of collecting data

• observation by hearing

• filling in the table

method of analyzing data

• observation and interpret from the result table.

Conducting the experiment

collecting the data

• amount of water / pitch of sound

• full / low

• medium / high

• little / higher

Multiple Select

which of the glasses that make the lowest pitch of sound?

• glass with full water

• glass with medium water

• glass with little water

• all the same

Multiple Select

which of the glasses that make the highest ptch of sound?

• glass full with water

• glass with medium water

• glass with little water

• all of them

Multiple Choice

what can be observed to the amount of water in the glass and the putch of sound made by tapping it?

• the greater the amount of water in the glass, the higher the pitch of the sound made

• the greater the amount of water in the glass, the lower the pitch of the sound made

Open Ended

why do you think the sound pitch is different when the water level in the glass is different?

Open Ended

what is your conclusion?

thank you

any question?