Sam examined a leaf on a tree without using any equipment. What properties of the leaf could he determine by his examination?

Question

color, solid, non reflective, block light, insoluble

color, lets light pass though, hardness, conductivity

transparent, low hardness, low boiling point, color

magnetic, solid, soluble, hardness, high boiling point

Answer 1

Based on Sam's examination of a leaf without using any equipment, the properties he could determine include:

1. Color - He can observe and describe the color of the leaf.
2. Solid - He can identify that the leaf is a solid object.
3. Reflective/Non-reflective - He might notice if the leaf is shiny (reflective) or dull (non-reflective).
4. Light Properties - He could determine whether the leaf is transparent, translucent, or opaque (block light).
5. Hardness - He can assess the relative hardness by feeling the texture of the leaf.
6. Insolubility/Solubility - While he cannot test this without equipment, he may infer that dried leaf material is generally insoluble in water.

Out of the provided options, the first option seems the most applicable:

color, solid, non-reflective, block light, insoluble.

The other options contain terms that require more specific tests or observations (like conductivity, boiling point, magnetic properties) that Sam could not determine just by visual examination.