Practical #1.

Glass Block.
Color - Transparent, See through.
Material - Glass.
Specularity - High and strong specular highlights.
Shadows- Soft, diffused shadows.
Reflectivity- High reflectivity, very reflective.

Plastic Ball.
Color - Spectrum of colors, Including Yellow, Blue, Red and Green.
Material - Plastic.
Specularity - High and strong specular highlights.
Shadows- Hard and harsh shadows.
Reflectivity- High reflectivity, very reflective.

Brushed metal plate
Color- Tint of silver.
Material- Metal.
Specularity- Low, diffused specular highlights
Shadows- Hard and harsh shadows.
Reflectivity- Low or no reflections.