SEEd 5.2.2

Select the properties of gold found in this paragraph.

Using the table select which of the ansers can be investigated to help indentify unknown minerals. (Select all that apply)

• What is the color of each mineral?

• Will the mineral scratch glass or is it softer than glass?

• What color is the powdered mineral streak when scratched against a tile?

• Is the mineral magnetic?

Tags

NGSS.MS-PS1-2

Mineral 1 Investigation:The student investigated how hard the mineral was and found that it scratches glass (harder). When rubbing the mineral against a tile the mineral left behind was a white powder. Magnets do not stick to the mineral. With parent permission the student found that the mineral doesn’t taste like salt.

Select which mineral you think the student found in this investigation.

• Gold

• Pyrite

• Halite

• Quartz

• Azurite

Mineral 2 Investigation: The student investigated how hard the mineral was and found that it is softer than glass. When rubbing the mineral against a tile the mineral left behind a blue and green powdered streak. Magnets do not stick to the mineral.

Select which mineral you think the student found in this investigation.

• Gold

• Pyrite

• Azurite and Malachite

• Quartz

• Galena

Mineral 3 Investigation: The student investigated how hard the mineral was and found that it scratched glass. When rubbing the mineral against a tile the mineral left behind a greenish-black powdered streak. Magnets do not stick to the mineral.

Select which mineral you think the student found in this investigation.

• Gold

• Pyrite

• Azurite and Malachite

• Quartz

• Galena