Science with Hazel: Testing for Oxygen

In this video, Hazel and Emilia conduct an experiment to test for oxygen. They introduce Emilia, a science technician, and explain the process of producing oxygen by reacting hydrogen peroxide with manganese dioxide. The presence of oxygen is confirmed using a glowing splint, which relights in the presence of oxygen. This demonstration is intended to help viewers understand how to test for oxygen, a concept useful for exams.

Who is Emilia and what is her role?

• A teacher at Sancton Wood School

• A science technician at Sancton Wood School

• A student at Sancton Wood School

• A guest speaker

What is Emilia's Instagram handle?

• @emilia.science

• @science.emilia

• @emilia.tech

• @tech.emilia

What are the two main chemicals used to produce oxygen in the experiment?

• Water and manganese dioxide

• Hydrogen peroxide and water

• Hydrogen peroxide and manganese dioxide

• Oxygen and hydrogen peroxide

What role does manganese dioxide play in the reaction?

• It is a solvent

• It is a reactant

• It is a product

• It is a catalyst

How do you confirm the presence of oxygen using a splint?

• By lighting the splint and observing if it burns

• By blowing out the splint and seeing if it relights

• By dipping the splint in water

• By observing the color change of the splint

What should you write in your exam about the glowing splint test?

• Oxygen extinguishes a glowing splint

• Oxygen changes the color of a glowing splint

• Oxygen relights a glowing splint

• Oxygen has no effect on a glowing splint

How did Emilia describe the brightness of the relit splint?

• Dim

• Moderate

• Very bright

• Not bright