Solids and Units of Volume
Learn what volume is and how to convert between units like mm³, cm³, mL, and L. Let’s get started! 🚀
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🛎️ What are Solids?
- Solids are 3D shapes with length, width, and height.
- Solids take up space. Cubes and cuboids are common solids.
🛎️ Parts of Cubes and Cuboids
- Faces are flat surfaces, edges are where faces meet, and vertices are corners.
- A cuboid has 6 faces, 12 edges, and 8 vertices.
🛎️ What Does Volume Mean?
- Volume is the amount of space a solid occupies.
- If a solid is made from 27 cubes of size 1 cm³, its volume is 27 cm³.
🛎️ Units of Volume
- Volume is measured using cubic units such as mm³, cm³, and m³.
- 1 cm³ is the volume of a cube 1 cm × 1 cm × 1 cm, about the size of a dice.
🛎️ Converting Between Units of Volume
- When converting to a smaller unit, multiply by 1000 (e.g. 5 cm³ = 5000 mm³).
- When converting to a larger unit, divide by 1000 (e.g. 2000 ml = 2 L).
Practice Questions
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Interactive Activity
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