ScienceYear 7

Year 7 Science – Data Science 1

Practise naming sources and types of data, digital footprints, scientific models, testable questions and calculating mean and range. 20 questions. 25 minutes.

Which of these is an example of qualitative data?

The colours of ten students' school bagsThe heights of ten students in centimetresThe masses of ten school bags in kilogramsThe times ten students take to run 100 m

Mia wants to know how much rain fell in Sydney last year. She downloads the daily records from the Bureau of Meteorology. What kind of data is this?

Primary dataSecondary dataQualitative dataPredicted data

What is a digital footprint?

A list of websites saved on one computer onlyThe record of how long a device has been onThe trail of data left by a person's online activityThe set of passwords a person has made up

Which statement best describes a scientific model?

An exact full-size copy of the real object or eventA final explanation that scientists never changeA prediction made before any observations are takenA representation of a real-world phenomenon based on data

Choose the word that completes the blank.

Data that are numbers, such as mass or temperature, are called ₁ data.

Blank 1: qualitative · secondary · quantitative

Choose the word that completes each blank.

A survey you run yourself gives ₁ data. Records you download from a council website give ₂ data.

Blank 1: secondary · primary · qualitative

Blank 2: secondary · primary · quantitative

Circle 2 words in the sentence below.

Click the two things that collect data for scientists.

satellitesrumourssensorsguessesopinions

Which of these is a physical model?

A computer simulation of the weatherA plastic model of the human heartA diagram of the water cycle in a bookA graph of rainfall over a year

Choose the word that completes the blank.

A globe and a diagram of the water cycle are both scientific ₁.

Blank 1: models · variables · trials

10.

Which habit best protects a person's privacy online?

Using the same easy password for every accountAccepting requests from people they have not metUsing a different long password for each accountSharing their location in every post

11.

Choose the word or phrase that completes each blank.

Posting photos and searching websites both add to your ₁. Using privacy settings and a ₂ password helps keep it safe.

Blank 1: data table · digital footprint · food web

Blank 2: short and easy · the same as other sites · long and unique

12.

Circle 2 words in the sentence below.

Click the two online activities that add to a digital footprint.

searchingsleepingpostingpaintingjogging

13.

A scientist is building a computer model to predict tomorrow's weather. Which measurement would she collect?

Soil pHRock hardnessThe number of birdsAir pressure

14.

A class wants a model to explain how a solar eclipse happens. Which model would work best?

A torch, a ball and a smaller ball lined up in a dark roomA lever and a weight showing how a trebuchet launches objectsA plastic model of the lungs made with a balloon and a bottleBeads showing how particles move in a stretched rubber band

15.

Which is a testable question for an investigation about plant growth?

Which type of plant do gardeners find most beautiful?Do plants like sunny windows more than shady rooms?Why do some people prefer growing flowers to vegetables?How does the amount of water affect the height of bean plants?

16.

Choose the word that completes each blank.

A student asks, 'How does the amount of water affect plant height?' The amount of water is changed, so it is the ₁ variable. Plant height is measured, so it is the ₂ variable.

Blank 1: controlled · dependent · independent

Blank 2: independent · dependent · controlled

17.

A student counts the birds seen in the school yard on four days. What is the mean number of birds?

Day	Birds
1	2
2	4
3	4
4	10

451020

18.

What is the range of the plant heights?

Plant	Height (cm)
A	12
B	15
C	9
D	14
E	10

2412615

19.

Choose the number that completes the blank.

Three students jump 4 cm, 7 cm and 10 cm. The mean jump is ₁ cm.

Blank 1: 7 · 21 · 10 · 5

20.

Circle 2 words in the sentence below.

Click the highest and lowest values you would use to find the range of these results.

72953

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Year 7 Science – Data Science 1