Middle School Science Sub Resources: Ready-to-Use Activities for Substitute Teachers and Busy Science Classrooms

Every science teacher needs a collection of resources that can be picked up quickly and used when the normal lesson does not go exactly to plan. Perhaps you are going to be absent and need something a substitute teacher can deliver without specialist subject knowledge. Perhaps a lesson finishes early, a practical cannot happen, a timetable changes, or you simply want students to have a worthwhile independent science activity while you deal with another part of the day. In all of these situations, well-designed supplementary science resources can make a huge difference.
The important point is that a good science sub resource should not simply occupy students for forty minutes. It should still teach science. It should reinforce scientific vocabulary, reading, reasoning, research, data interpretation or communication while being simple enough for students to begin with limited explanation. The best resources are therefore not just emergency worksheets. They become part of a teacher's wider toolkit for making science lessons more flexible.
I think this is particularly useful across upper elementary, middle school and high school because the same basic idea can be adapted to different levels of independence. A younger student might need a short science reading passage and a carefully structured graphic organizer. A middle school student might be ready to read a more substantial science article, identify evidence and complete a guided research task. A high school student may be able to work through a complex research project, evaluate information and make connections between science, mathematics, technology and society.

What makes a useful science resource for a substitute teacher?
When you are leaving work for a substitute teacher, the first question should be very practical: can the students understand what to do without the classroom teacher standing beside them?
That sounds obvious, but it changes how a resource should be designed. A complicated investigation that relies on specialist equipment, a particular classroom routine or a long teacher explanation may be excellent when you are present but less useful as a substitute lesson. A self-contained science activity is much more reliable.
A strong substitute science resource should ideally have a clear beginning, middle and end. Students should know what they are learning, what they need to read or investigate, what they need to produce and what counts as completion. It is also helpful when the resource includes answers, examples, a rubric or some form of teacher guidance so that a substitute does not need to become the science expert for the lesson.
This is one reason I like science reading passages, anchor charts and research project templates as substitute teaching resources. They can be prepared in advance, printed or shared digitally, and they do not depend heavily on specialist equipment. They can also be used in ordinary lessons, so they are not sitting in a folder waiting for an emergency.
My free Teaching Astrophysicist Resource Catalogue is a useful starting point because it brings together a large collection of science and mathematics resources and clearly identifies free items. Free Teaching Astrophysicist Resource Catalogue.
Upper elementary science: keep the structure strong and the reading accessible
For upper elementary science students, supplementary resources should generally provide a strong amount of structure. Students can certainly work independently, but they often benefit from shorter texts, explicit vocabulary support, clearly separated tasks and concrete questions that gradually move from comprehension toward reasoning.
A science reading passage can work particularly well here. Imagine a student reading about insects, ecosystems, the Solar System or extreme weather. Rather than simply asking students to read a page and answer "What did you learn?", the resource can ask them to identify the main idea, locate key details, define important vocabulary and explain one scientific idea in their own words.
This is where an anchor chart or graphic organizer can become much more useful than a traditional worksheet. Instead of giving students another page of questions, you can ask them to organise what they have learned. What is the main idea? What are the three most important facts? Which scientific words are new? What evidence does the text provide? What question would you still like to investigate?
My Science Reading Anchor Charts: Graphic Organizer, Main Idea and Key Details are designed around this idea. The pack contains 25 different science reading anchor charts and can be used with upper elementary students as well as middle and high school students because the structure can be adjusted according to the text and expectations. It includes printable versions, editable formats, exemplars and an HTML version. Science Reading Anchor Charts.
A particularly simple way to use these in an upper elementary substitute lesson is to provide one accessible science article, one anchor chart and one short written response. The substitute teacher does not need to introduce an elaborate activity. Students read, organise their thinking and produce something that demonstrates learning.
There are also free resources that can make excellent starting points. My free Insects science reading passage is a good example of a grab-and-go science activity. It includes student and teacher versions and can be used for substitute teaching, weekly reading, extension or independent work. Free Insects Science Reading Passage.
The wider principle is simple: for younger learners, do not confuse independence with a lack of structure. Good supplementary science resources give students enough structure to work confidently while leaving enough room for them to think.
Middle school science: move from answering questions to thinking like a scientist
Middle school is where supplementary science resources can become particularly powerful because students are beginning to move beyond basic comprehension. They are often ready to read increasingly complex scientific texts, identify evidence, interpret information, connect ideas and carry out small pieces of independent research.
This is also the age range where I think teachers can get enormous value from having a bank of middle school science sub resources ready to go. A substitute teacher does not necessarily need to teach a brand-new concept from scratch. Students can work through a carefully designed science reading task, complete a structured research project or analyse information using a thinking routine.
Reading passages are particularly useful because science literacy is not separate from science learning. Students need to be able to understand the language of science before they can reliably explain scientific ideas. A well-written passage can also expose students to topics that go beyond the immediate curriculum, which can help build general scientific literacy.
For example, a middle school class could read about heatwaves and then answer questions that begin with straightforward comprehension before moving towards critical thinking. Students might first identify what a heatwave is, then explain factors that contribute to extreme temperatures, interpret some data, and finally consider how heatwaves can affect ecosystems or communities.
My Heatwaves Earth Science Articles + Research Project Template Set was designed with this sort of flexibility in mind. It includes two levels of reading passage, one aimed approximately at younger students around grades 5 to 7 and another intended for older students around grades 8 to 10. The research template then provides a structured route into a summary, mathematics connection, engineering or technology connection, glossary and critical thinking. Heatwaves Articles + Research Project Template Set.
That differentiation is particularly useful for substitute teaching because one classroom can contain students working at very different levels. Rather than preparing completely different lessons, you can provide the same topic with a more accessible and more advanced route through the material.
Another approach is to give students something that looks more like a miniature research project. Middle school students can often manage a structured task surprisingly well when the research process has been broken into manageable stages. Asking a student to "research tectonic plates" is vague. Asking them to write a short summary, explain a mathematical relationship, identify five important scientific terms, answer a few inquiry questions and produce an interesting fact or statistic gives them a much clearer route forward.
The free Tectonic Plates Research Project Template is a useful example. It contains a guided structure, differentiated inquiry questions, a 20-point rubric and HTML background material, and it is explicitly designed to work as a substitute teaching resource as well as an extension or longer-running task. Free Tectonic Plates Research Project Template.
This is an important distinction. A good middle school science sub resource should not merely stop students from being idle. It should help them practise skills that matter in science: reading, summarising, using vocabulary accurately, finding evidence, making connections, asking questions and communicating ideas.
High school science: increase independence and scientific depth
In high school, the same resource formats can still work, but the expectations should rise.
A high school science reading passage should generally ask students to do more than retrieve information. Students can be expected to explain relationships between variables, evaluate claims, compare evidence, interpret quantitative information or apply scientific concepts to unfamiliar situations.
Research projects can also become significantly more independent. Instead of asking students simply to collect facts, a research template can require them to make connections between the science and mathematics, technology, engineering or wider societal issues. It can also ask students to distinguish between strong and weak evidence or to defend a conclusion using information from their research.
This is where a broad bank of science reading passages can become extremely useful. My Ultimate 209 Science Reading Comprehension Passages and Questions collection contains reading material across astronomy, biology, chemistry, physics, Earth science, medicine and health, including pairs of passages at different levels for a number of topics. The collection is intended to work as grab-and-go supplementary material, including substitute teaching, extension, weekly reading and lesson filler. Ultimate 209 Science Reading Comprehension Passages and Questions.
That sort of collection can make planning easier because you do not need every supplementary resource to correspond perfectly to the exact lesson being taught that day. A student can read about black holes, genetics, chemistry, extreme weather or another relevant science topic and still be developing transferable scientific literacy skills.
High school is also a good stage for using research templates as a bridge between guided classroom work and independent investigation. A structured template does not mean the thinking is simplistic. In fact, a strong framework can allow students to spend more of their time thinking about the science because they are not constantly wondering what the teacher means by "do some research."
A useful progression across the three age groups
One of the simplest ways to differentiate supplementary science resources is to think in terms of how much structure you provide.
For upper elementary students, the resource might provide the text, vocabulary, questions and graphic organiser. The student is learning how to process scientific information.
For middle school students, you can provide the text and a clear framework but begin asking students to make their own connections. They might identify evidence, interpret a graph, explain a real-world application or answer a research question using several pieces of information.
For high school students, you can increasingly reduce the scaffolding and increase the cognitive demand. A resource might begin with background reading but then require students to investigate a question, compare sources, make a quantitative connection, evaluate evidence or construct a reasoned response.
The topic itself does not necessarily need to change. The level of independence and complexity can change.
That is why I particularly like resources that have built-in flexibility. The Science Reading Anchor Charts can be used with the same broad idea at several age levels, while the differentiated reading passages in resources such as the Heatwaves set allow teachers to adjust the reading demand without completely changing the lesson. Science Reading Anchor Charts & Heatwaves Resources.
How I would build a science substitute folder
If you are creating your own bank of science sub resources, I would avoid filling it with dozens of unrelated worksheets. A much more useful system is to create a small collection of repeatable resource types.
Have a set of science reading passages for independent literacy and content learning. Have a collection of graphic organisers and anchor charts that can be paired with almost any scientific text. Have several research templates that provide longer activities when you need students occupied productively for a full lesson or several lessons. Keep answer keys, rubrics and teacher instructions with the student materials rather than in a separate location.
It is also worth keeping digital and printable versions wherever possible. A substitute teacher might be working in a classroom where printing is awkward, while another situation might require students to work from paper. Resources that work in both formats give you much more flexibility.
And think about the substitute teacher's perspective. A resource should ideally make it obvious what students need to do first, what they should complete before moving on, what they should hand in and what they should do if they finish early. This can save a surprising amount of confusion.
One of the reasons I have increasingly included HTML versions in some of my own resources is that they can make independent digital work more practical. For example, several of the newer resources include interactive HTML formats that allow student responses to be entered digitally, with JSON export and import functionality for saving and restoring work. The Heatwaves resource and Tectonic Plates resource are examples. Heatwaves Resources & Tectonic Plates Resources.
Supplementary science resources should support the lesson, not replace good teaching
There is a temptation to think of supplementary resources as something teachers use only when they have run out of ideas. I think the opposite is closer to the truth.
Well-chosen additional resources give teachers more options. A reading passage can prepare students for a difficult topic before a lesson. An anchor chart can help them organise ideas afterwards. A research project can extend a topic for students who are ready to go further. A free resource can give a substitute teacher a dependable activity without adding another preparation job to your evening.
They can also help students become more independent. When students regularly encounter clear scientific texts, structured thinking routines and guided research tasks, they gradually become more capable of handling science without constant teacher explanation.
That is particularly valuable in mixed-ability classrooms. Instead of assuming every student needs exactly the same worksheet, teachers can provide different levels of reading, different inquiry questions or different degrees of scaffolding while keeping everyone connected to the same broad scientific idea.
Start small and build a useful library over time
You do not need hundreds of resources to make a difference. Start with a handful of topics that commonly appear in your curriculum and choose materials that can be reused in several ways.
A science reading passage might be a substitute lesson one week, homework the next, a literacy activity later in the term and a source of evidence for a research project after that. An anchor chart might be used with several different articles. A research template might be used for independent work, extension or a longer-running project.
That is where a resource library becomes much more valuable than a collection of isolated worksheets.
I have built The Teaching Astrophysicist around this principle, with science resources spanning biology, chemistry, physics, Earth science, space science, health and other topics. The store also has a dedicated Free Resources section where you can try a range of materials without needing to buy anything first. The Teaching Astrophysicist Science Resource Store & Free Science Resources.
For teachers who want to explore the format before purchasing, the free Insects reading passage and Tectonic Plates research project are good places to begin. For a broader collection, the Ultimate 209 Science Reading Passages provides a much larger bank of ready-to-use reading material, while the Science Reading Anchor Charts add a flexible way to help students process the texts rather than simply answering questions about them.
Free Insects Reading Passage & Free Tectonic Plates Research Project & Ultimate Science Reading Collection & Science Reading Anchor Charts.
The goal is not to replace your science teaching with worksheets. It is to have useful science activities ready when you need them, whether that means a middle school science sub plan for tomorrow morning, an extension task for a student who has finished early, a reading activity for a mixed-ability class or a longer research task for students who are ready to work more independently.
The best supplementary science resource is therefore not necessarily the most complicated one. It is the one that is ready when you need it, clear enough for students to use independently, rigorous enough to be worth their time and flexible enough to work in more than one classroom situation.
Thanks for reading
Cheers and stay curious
Oliver - The Teaching Astrophysicist



