What students investigate

Students start with the idea that objects are made from materials, then learn the words to describe them: color, texture, hardness, how easily a material bends, and whether a surface looks shiny or dull. Each word gets its own Learn card with an everyday object.

The second half is about doing science with those words. Students compare two materials, plan a test that answers a question, record what they observe in a chart, and sort materials by a property they share.

Who it is for

Materials Detectives is written for Grade 2 and is a good first pack for the year, because the observe-test-record habit returns in every other Grade 2 pack. It leads straight into Choosing Materials, which uses those properties to pick the right material for a job.

It works well before a hands-on sorting tray, so students already have the words for what they feel and see.

What students learn

10 learning ideas, one at a time. Each one is a silent animated Learn card, then Review and Mastery questions.

1. Objects are made from materials.
2. Color can help describe a material.
3. A material can feel smooth or rough.
4. Materials differ in how easily they dent.
5. Some materials bend more easily than others.
6. Some surfaces look shiny or dull.
7. Comparing shows how materials are alike and different.
8. Plan a test that answers your question.
9. Write or mark observations in a chart.
10. Sort materials using a shared property.

Science words in this pack

Each word is taught on its Learn card, then used again in Review and Mastery.

• material
• color
• texture
• hardness
• flexible
• shiny
• compare
• test
• record
• sort

Inside the pack

How it works in class

• Learn. 10 silent whiteboard animations, one idea per card. No audio, so it works on a classroom screen or a quiet device.
• Review. 30 practice questions with feedback. Ideas a student misses come back.
• Mastery. 30 questions to show what each student knows on their own.
• Certificate. A student who finishes can print a certificate or save it as a PDF. It shows first-try Review and Mastery results and the ideas that needed a retry.

Standards connections

These cards support parts of the following NGSS performance expectations. They do not replace hands-on investigations.

• 2-PS1-1 — core ideas

More in Science in Motion — Grade 2

• Choosing Materials Pick the best material for a job by testing its properties.
• Build With Pieces See how a set of small pieces can be built into many new objects.
• Heating & Cooling Find out which changes from heating or cooling can be undone.
• Compare Habitats Compare the plants and animals that live in different places.
• Shaping the Land Explore hills, valleys and rivers, and how wind and water change land.
• What Plants Need Test what plants need to grow: light and water.
• Pollinators & Seeds See how animals move pollen and help seeds travel.
• Maps Around Us Use simple maps to show the shapes of land and water.
• Finding Water Find where water is on Earth, as solid ice or liquid water.
• The Water Cycle Follow water as it moves between sky, land, and water.

About the Science in Motion — Grade 2 series