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Year 10 Science sample

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Question 1 of 5 Observing and measuring

A soil technician writes down three readings from the same balance, one after the other, without touching any of the settings. What is the mass of the dry soil?

Three readings from one balance
What was on the panBalance reading (g)
Nothing4
The empty jar74
The jar with the dry soil154
Question 2 of 5 Life and living

A breeder keeps a record of the chicks that hatched in four pens over one season. In which pen must BOTH parent birds be carrying a blue allele without showing it?

Chicks hatched in four pens
PenParent coloursGreen chicksBlue chicks
Pen 1Green and blue23
Pen 2Green and blue30
Pen 3Green and green62
Pen 4Green and green60
Question 3 of 5 Natural and processed materials

Marble chips and acid were tipped together in two flasks at the same moment. One flask was left open and the other was stoppered. Each flask was weighed with all of its contents at the start and again ten minutes later. What mass of gas got out of the open flask?

Flask and contents weighed twice
FlaskMass at start (g)Mass after 10 min (g)
Open flask126.4121.3
Stoppered flask134.4134.4
Question 4 of 5 Observing and measuring

A delivery van pulls out of a depot and its speed is plotted against time for the first thirty seconds. In the leg where it picked up speed fastest, how many metres per second did it gain each second?

Van speed over the first 30 seconds03691215182124273004812162024283236Time (s)Speed (m/s)compare the slopes5 s5 m/s
Question 5 of 5 Earth and beyond

Four stars are listed with the mass they carry now and the mass each is expected to blow away as a stellar wind before it dies. Which star is on track to leave a neutron star behind?

Stars now and the mass each will shed
StarMass now (Suns)Mass it will shed (Suns)
Star A2114
Star B3523
Star C4414
Star D1310
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