British Science Week activity: Curiosity and questions
Celebrate British Science Week and explore this year’s theme, ‘Curiosity: what’s your question?’, by putting pupil questioning at the heart of Science learning. In this free Science activity, children collect natural materials, generate and sort questions about how they may float or sink, identify which can be tested and investigate one shared focus question.
The same enquiry approach, focusing on questioning, is used across all year groups, with age-appropriate adaptations from KS1 to KS2. Younger pupils compare and sort, while older pupils look for patterns, causes and effects. Step-by-step guidance supports teachers to develop pupils’ working scientifically skills through purposeful questioning. It’s time to investigate!
Resources
- Presentation: Curiosity: What’s your question?
- A large, transparent bowl of water, such as a mixing bowl or perspex tank (for teacher use).
- Transparent bowls of water (optional – one per group of five).
- An outdoor space for collecting natural materials (such as sticks and leaves).
- Natural materials collected from a garden or park (optional if outdoor space is limited).
- A flipchart and eight board pens of different colours.
- Whiteboards and pens (optional – one per pupil or group of five).
- Children must be accompanied outside at all times by an adult.
- Do not pick living plants or leaves.
- Do not collect minibeasts.
- Handle materials carefully.
In this activity, the main learning comes from generating, discussing and improving questions. Natural materials and water act as a stimulus for curiosity, not as the focus of extended testing. Spend most of the time supporting pupils to pose questions, identify keywords and decide which questions are testable, rather than carrying out investigations.
Explore
Display the Presentation: Curiosity: What’s your question? Read through the slides with the class. For each question slide (slides 2–7), pause and discuss:
All pupils:
- What is the question keyword? (Which, what, does, is, how, why.)
- Can you improve the question? (Answers will vary.)
Key stage focus:
- KS1: What does the question help us find out?
- LKS2: Does this question help us explain something?
- UKS2: Could we test this question fairly?
Answers are included for interest only. Pupils are not expected to answer the questions; the focus is on how different question words shape scientific thinking.
Cover as a minimum:
- KS1: what and which.
- LKS2: what, which, does, is.
- UKS2: what, which, does, is, how, why.
All classes then move to an outdoor space to collect natural materials such as grass, leaves, twigs, stones, soil, sand, pinecones and conkers. If outdoor access is limited, collect materials from a garden or park in advance and place them around a large indoor space, such as a hall, for the children to collect.
Question
Children use the natural materials they have collected to generate their own questions. Each Key stage uses different question prompts to facilitate the development of posing question skills.
| Key stage | Keyword | Question prompt | Example question |
| KS1 | Which | Which ones…? | Which ones are easy to crush? |
| Which ones are waterproof? | |||
| What | What happens if…? | What happens if we pour water over the materials? | |
| What happens if we try to stretch the materials? | |||
| LKS2 | Do | Do these act differently…? | Do hard materials sink more quickly than soft materials? |
| Do flexible materials bend more when they are wet? | |||
| Is | Is there a pattern…? | Is there a pattern that helps us tell which materials are waterproof and which are not? | |
| Is there a pattern that helps us tell which materials bend and which snap? | |||
| UKS2 | Why | Why can/do…? | Why do stones sink even when they are really small? |
| Why can some bits of soil float while others sink? | |||
| How | How does…? | How does the size of a natural material affect whether it floats or sinks? | |
| How does the thickness of a piece of bark affect how long it floats? |
Assess
Pupils sort their questions by identifying keywords and deciding which questions can be investigated using their Super Science skills, also known as enquiry types (see the Resource: Super Science skills poster or the Resource: Scientific enquiry types poster and the Teacher video: Scientific enquiry types *subscription/free trial needed to view the video). They learn that scientists do not investigate every question but choose those that are testable, and discuss which enquiry types could be used to test selected questions.
The enquiry type used in an investigation is influenced by the question being asked, but it is also shaped by how pupils choose to explore that question. The same question can sometimes be explored in different ways, leading to different enquiry types.
What matters is:
- Which variables are changed or controlled.
- What is observed or measured.
- Whether results are compared fairly or analysed for patterns.
Therefore, pupils need to consider not only ‘What is our question?’ but also ‘How might we try to answer it?’
Focus question
All year groups then select a single question to be investigated:
- Year 1 and 2: Which natural materials float and which sink?
- Year 3 and 4: Is there a pattern in the types of natural materials that float?
- Year 5 and 6: How does changing the shape of a natural object affect floating and sinking?
Test
Methodology varies depending on the question; see Resource: Teacher guide: British Science Week for more details.
Reflect
Pupils reflect on what they found out, how easy it was to investigate their question and what new questions their findings raise. They learn that in science, answering questions often leads to further questions.
| Key stage | Keyword | Example further question |
| Year 1 and 2 | Which | Which ones float for the longest time? |
| Which ones float in one piece but sink when they break? | ||
| What | What happens if the material is already wet? | |
| What happens if we push the floating material under the water? | ||
| Year 3 and 4 | Do | Do the floating materials sink if the water is heated? |
| Do the materials act differently if they are broken into smaller pieces? | ||
| Is | Is there a pattern in which materials soak up water quickly and which do not? | |
| Is there a pattern in the shapes of leaves that float? | ||
| Year 5 and 6 | How | How does being wet or dry affect how a natural material behaves in water? |
| How does the surface texture of a natural material affect how quickly it sinks? | ||
| Why | Why do some seeds float while others sink? | |
| Why can some leaves float on water for a long time before sinking? |
Extend
The activity can be extended by selecting one of the example further questions to test or by writing up observations and conclusions (see Resource: Teacher guide: British Science Week for more details).
Key Vocabulary for KS1
| Word | Lesson/unit for additional support | Definition |
| float | Stays on top of the water. | |
| group | To sort things based on similarities. | |
| material | What an object is made from. | |
| natural material | A natural material comes from plants, animals, or the ground and has not been made by humans (e.g. leaves, wood, stone, or soil). | |
| property | How a material is described. | |
| sink | Goes to the bottom of the water. |
Key Vocabulary for KS2
| Word | Lesson for additional support | Definition |
| fair test |
|
Only one variable is changed, so the results are more trustworthy. |
| pattern | A way things repeat or are arranged in order. | |
| testable |
|
A question that is practical to test using scientific enquiry. |
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