Year 10 Science – Data Science 1
Evaluate data, models and predictions: mean, range, reliability and accuracy, limits of computer models, scientific evidence and ethical use of data. 20 questions. 25 minutes.
A school app records students' locations to plan bus routes. Which practice is the most ethical?
Which of these is scientific evidence that a new fertiliser improves crop yield?
Choose the word that completes each blank.
Sea surface temperatures that a student downloads from a satellite archive are 1 data for her, while temperatures she measures herself are 2 data.
Blank 1: primary · qualitative · secondary
Blank 2: primary · secondary · quantitative
Choose the word that completes each blank.
A formula linking dam volume to rainfall is a 1 model, and a plastic torso with removable organs is a 2 model.
Blank 1: physical · mathematical · diagram
Blank 2: physical · computer · diagram
A student says, 'The Big Bang is only a theory, so it is just a guess.' Which reply is best?
A group timed a ball rolling down a ramp five times. What is the mean time?
Circle 1 word in the sentence below.
A student's method for finding the range is shown. Click the word that shows her error.
Shefoundtherangebyaddingthelowestandhighestvalues.
Which is the best investigable question about warmer seas and cyclones?
Time (s): 0, 10, 20 | Distance (m): 0, 40, 80. Choose the words that complete each blank.
Reading the distance at 15 s from this table is 1, which gives 2 m.
Blank 1: extrapolating · averaging · interpolating
Blank 2: 70 · 60 · 40
A student fits a straight-line trend to these mould measurements. Which prediction is the least reliable?
| Day | Mould diameter (mm) |
|---|---|
| 1 | 4 |
| 2 | 8 |
| 3 | 12 |
| 4 | 16 |
Group A: 4.0, 4.2, 4.4 s | Group B: 3.0, 4.2, 5.4 s. Choose the word that completes each blank.
Group B's range is 1 than group A's, so group B's results are 2 reliable.
Blank 1: smaller · the same · larger
Blank 2: more · less · equally
Circle 1 word in the sentence below.
Plant height was measured on days 1 to 10. Click the day for which a prediction would be extrapolation.
Day 4Day 8Day 15Day 6
A student predicts that warmer water holds less dissolved oxygen. Which conclusion is best supported by her data?
| Temperature (°C) | Dissolved oxygen (mg/L) |
|---|---|
| 10 | 11.3 |
| 20 | 9.1 |
| 30 | 7.5 |
| 40 | 6.4 |
Scientists want a model to test whether warmer seas strengthen cyclones. Which dataset is most useful?
Choose the word or phrase that completes each blank.
A simulation that leaves out a new weed species will give 1 predictions, because results depend on the 2 built into the model.
Blank 1: less accurate · more accurate · more reliable
Blank 2: number of runs · assumptions · computer speed
Circle 1 word in the sentence below.
Click the word that stops this question from being investigable: 'Are cyclones scary when seas are warm?'
Arecyclonesscarywhenseasarewarm?
A biodiversity model predicts that frog numbers in a wetland will double in 10 years. Which evaluation is best?
Group A's four trials were 14, 15, 16 and 15 s. A fifth trial gives 25 s. What is the mean of all five trials?
The true value of g is 9.8 m/s². Four groups each measured it three times. Which group's data are reliable but not accurate?
| Group | Trial 1 | Trial 2 | Trial 3 |
|---|---|---|---|
| A | 9.7 | 9.8 | 9.9 |
| B | 9.0 | 9.1 | 9.2 |
| C | 8.0 | 9.8 | 11.6 |
| D | 9.4 | 9.9 | 10.4 |
Choose the word that completes each blank.
A good model explains a phenomenon by showing cause and 1, and is evaluated against a 2.
Blank 1: effect · evidence · error
Blank 2: friend's opinion · price · rubric