Science Assessment Flashcard

Front

Agapito Flores invented a glass tube which radiates light when phosphor on its inside surface is made to fluoresce by ultraviolet radiation from mercury. What was his invention?

Back

Fluorescent Lamp

Front

Who invented an apparatus used to hatch eggs or grow microorganisms under controlled conditions called incubators?

Back

Fe Del Mundo

Front

Who is known for his invention of the modern video phone?

Back

Nikola Tesla

Front

Who invented the medicine Erythromycin?

Back

Abelardo Aguilar

Front

What is the difference between biodegradable and non-biodegradable materials in terms of their chemical properties?

Back

Biodegradable materials can break down naturally, which is easily decomposed, while non-biodegradable materials, like plastics and metals, have more stable chemical properties that resist decomposition.

Front

What are the chemical properties of materials that can be burned?

Back

They can react with oxygen when heated, causing them to catch fire and release heat, light, and smoke.

Front

What type of change did the eggs undergo during cooking?

Back

Chemical change

Front

Which action does not involve a physical change?

Back

The lemonade becomes sweet after adding sugar.

Front

What is one recommended practice for handling reactive materials safely to minimize exposure to hazardous substances and reduce the risk of injury or chemical reactions?

Back

Keeping them in well-ventilated and dry conditions

Front

Safety measure for handling materials that react violently with water?

Back

Ensuring the materials are stored in an airtight container