Year 9 Science · Unit 4 · Lesson 10

Large Datasets: Features, Collection and Uses

Foundation Worksheet

Name
Date
Class

Learning Goals

Warm Up

Sort it!

Write each item from the pool into the correct box. Decide whether each one is an example of structured data (fits a table of rows and columns) or unstructured data (does not fit a simple table).

A table of daily temperatures A satellite photo of clouds A spreadsheet of rainfall in mm A recorded bird call A list of student heights in cm A photo of a plant uploaded by a citizen scientist A column of stars' brightness values A written paragraph in a survey A grid of train tap-on times A video clip of a football match

Structured Data

Unstructured Data

Your Turn

Fill the gap

Choose the correct word from the word bank to complete each sentence. Two words will not be used.

dataset volume variety velocity record variable metadata census opinion

An organised collection of related data is called a . When a dataset has a huge number of records we say it has high . When it measures many different things at once it has high . When new data keeps arriving very quickly it has high . In a table, one row that holds all the data about a single observation is called a , and one column that holds a single measured thing is called a . Information about when, where and how the data was collected, including its units, is called .

Show What You Know

1. Name two different ways that large datasets are collected, and give one example of each.

Recall 2 marks

2. In a weather dataset, what does a row (record) represent, and what does a column (variable) represent? Give one example of each.

Recall 2 marks

Wrap Up

In one sentence, what was the main idea of this lesson?

HSCScience · Year 9 Science · Unit 4 · Lesson 10 · Foundation Worksheet