Introduction – Chapter 4 – Sorting Materials into Group – Science Class 6
Appearance, Hardness & Soluble or Insoluble – Ch 4 – Sorting Materials into Group – Science Class 6
Float, Transparency & Opaque – Chapter 4 – Sorting Materials into Groups – Science Class 6
Q 1, Q 2, Q 3 and Q 4 – Chapter 4 – Sorting Materials into Group – Science Class 6 – NCERT
Q 5, Q 6 and Q 7 – Chapter 4 – Sorting Materials into Group – Science Class 6 – NCERT