Identifying Powders (Science Olympiad)

You find an unknown substance on the kitchen counter. It looks like a white powder with square grains, and is soluble in water. What do you think it is?

• Salt

• Sugar

• Baking Soda

• Flour

You're science teacher has given you a mysterious powder to experiment on. After conducting the solubility test, you find that it is not soluble in water. Which choice can you immediately mark off?

• Gypsum

• Yeast

• Vitamin C

• Cornstarch

You have yet another mystery substance. This time, you conduct the flame test. The flame turns yellow. What do you think your mystery substance is?

• Boron

• Sodium (Na)

• Lithium

• Potassium

Your science teacher gives you a silver medal for winning second place in Science Olympiad. When you place your medal near a magnet, you realize that your medal is NOT magnetic. Which choice can you immediately mark off?

• Copper

• Magnesium

• Zinc

• Iron

Tags

NGSS.MS-PS2-3

During the Forensics test, some teacher gives you a substance, and tells you to find out what it is. You put the substance in water, and see that it's soluble in water. You also put some pH paper in, and the pH paper turns red. What can you assume is the substance?

• Baking Soda

• Vitamin C

• Table salt

• Anydrous Sodium Acetate

Tags

NGSS.MS-PS1-2

With careful supervision from your teacher, you put some hydrochloric acid on a silvery gray metal. The metal starts steaming and releasing an odor. What do you think the metal could be?

• Aluminum

• Tin

• Magnesium

• Iron

Tags

NGSS.MS-PS1-2

There's a white powder that is soluble in water and fizzes when placed in the water. What do you think it is?

• Powdered Gelatin

• Powdered Alka-Seltzer

• Vitamin C

• Sugar

When mixing this substance with water, it forms some sort of slurry. What do you think it is?

• Flour

• Sugar

• Cornstarch

• Table Salt

You have a mysterious shiny metal that you found on a walk. Wanting to find out what it is, you find it's density and conduct the Hydrochloric Acid test. The density is 7.1 and it reacts quickly to Hydrochloric Acid. What do you think it is?

• Zinc

• Aluminum

• Gold

• Tin

Tags

NGSS.MS-PS1-2

You have yet another mystery white substance. It's not soluble in water. IN FACT, it hardens in the water (strange). What do you think it is?

• Corn Starch

• Alka-Seltzer

• Flour

• Gypsum