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Gwyddoniaeth

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

Pa un ydi'r planed goch? / Which is the red planet?

a)

Mercher / Mercury

b)

Mawrth / Mars

c)

Gwener / Venus

d)

Iau / Jupiter

2.

Beth ydi enw'r darn yma o offer? / What is this piece of equipment called?

a)

Gwresogydd / Burner

b)

Gwresogydd sbirit / Spirit Burner

c)

Gwresogydd Bunsen / Bunsen Burner

d)

Gwresogydd bunsen / bunsen Burner

3.

Pa tymheredd ydi'r poethaf? / Which temperature is hottest?

a)

0 degrees Celcius

b)

0 degrees Farenheit

c)

100 degrees Celcius

d)

100 degrees Farenheit

4.

Enwch ble mae craig hylif yn torri drwy cramen y Ddaear. / Name when liquid rock erupts through the Earth's crust.

a)

Llosgfynydd / Volcano

b)

Geyser

c)

Daeargryn / Earthquake

d)

Guto Ffowc / Guy Fawkes

5.

Sut mae egni gwres yn teithio? / How does heat energy travel?

a)

o boeth i oer / from warmer to colder

b)

o oer i boeth / from colder to warmer

6.

Beth ydi'r enw pan mae'r lleuad yn rhwystro'r haul? / What is it called when the moon blocks the sun?

a)

Lunar Eclipse

b)

Full Moon

c)

Solar Eclipse

d)

Solar Flare

7.

Mewn beth mae asidedd yn cael ei fesur? / What is a measure of acidity called?

a)

PH

b)

Ph

c)

ph

d)

pH

8.

Pwy ydi'r gwyddonydd enwog yma? / Who is this famous scientist?

a)

Albert Einstein

b)

Ernest Rutherford

c)

Thomas Edison

d)

Jamie Lichtwark

9.

Beth ydi rhagfynegi? / What is a hypothesis?

a)

canlyniadau yr arbrawf / results from the experiment

b)

offer yr arbrawf / equipment in the experiment

c)

dysgu yn yr arbrawf / learnt in an experiment

d)

dyfalu beth sydd am ddigwydd yn yr arbrawf / prediction of the experiment

10.

Beth ydi'r tri cyflwr mater? / What are the three states of matter?

a)

daear, gwynt, tân / earth, wind, fire

b)

bach, canolig, mawr / small, medium, large

c)

cig, tatws, llysiau / meat, potato, vege

d)

solid, hylif, nwy / solid, liquid, gas

11.

Pa mor hir ydi o'n cymryd i olau deithio i ni o'r Haul? / How long does it take for light to get from the Sun to us?

a)

8 milliseconds

b)

8 minutes

c)

8 seconds

d)

8 hours

12.

Beth ydi doctor yn ei ddefnyddio i wrando ar eich calon? / What does a doctor use to listen to your heart?

a)

microscope

b)

telescope

c)

stethoscope

d)

oscilloscope

13.

Pa offer Gwyddonol sy'n mesur tymheredd? / Which Science tool measures temperature?

a)

fflasg / flask

b)

meicrosgop / microscope

c)

thermomedr / thermometer

d)

silindr mesur / measuring cylinder

14.

Sawl asgwrn sydd gan siarc? / How many bones do sharks have?

a)

0

b)

106

c)

32

d)

308

15.

Pa nwy sy'n creu rhanfwyaf atmosffer y Ddaear? / What gas makes up most of the Earth's atmosphere?

a)

Oxygen

b)

Nitrogen

c)

Carbon Dioxide

d)

Hydrogen

16.

Beth mae'r symbol yma yn ei olygu? / What does this symbol mean?

a)

perygl / danger

b)

gwenwynig / poisonous

c)

cyrydol / corrosive

d)

môr leidr / pirates