Mixtures and Solutions: Homogeneous vs Heterogeneous - FREE Video Worksheet - Middle School Science for 2025 & 2026

Pour sugar into water and it disappears. Pour sand into water and it just sits there. Why? The answer lies in understanding mixtures, solutions, and solubility - how different substances combine (or don't!) and what determines whether something will dissolve. This is chemistry in action every time you make lemonade or stir salt into soup!

[Preview this free video here on YouTube]

Standards:

Perfect for 6th, 7th, and 8th grade students studying physical science and chemistry. This video aligns with 🎯NGSS standard MS-PS1-2, analyzing and interpreting data on the properties of substances before and after they interact to determine if a chemical reaction has occurred. It also addresses NGSS 5-PS1, Matter and Its Interactions.

TEKS Addressed: 
🎯 Middle School Science: 6.6.B - The student is expected to investigate the physical properties of matter to distinguish between pure substances, homogeneous mixtures (solutions), and heterogeneous mixtures

⭐ What's Covered?:

✅ What mixtures are and how they differ from pure substances
✅ Heterogeneous mixtures: visibly different parts you can see
✅ Homogeneous mixtures (solutions): uniform throughout
✅ The dissolving process: how solutes break apart in solvents
✅ Solubility: what makes substances dissolve (or not)
✅ Factors affecting solubility: temperature, pressure, and particle size 
✅ Real-world examples: cooking, medicine, ocean water, air we breathe

What will the students be doing?

● Students will be given either a printed or digital handout to record answers on.

● Either individually or as a class watch the video

● Then, they will use the video and their own knowledge to answer the questions.

● Use questions to spark discussions and apply information beyond the page!