Understanding Dissolving and Particles

What is the first step in the experiment shown in the video?

• Stirring sugar in a cup

• Filling a cup with warm water

• Adding sugar to cold water

• Tasting the water

Why does the water taste sweet after adding sugar?

• Because sugar particles are visible

• Because sugar remains undissolved

• Because sugar dissolves in water

• Because sugar evaporates

What are particles?

• Objects that are larger than grains of sand

• Objects that can only be seen under a microscope

• Tiny objects too small to see

• Large objects visible to the eye

What is the smallest piece of sand according to the video?

• A molecule of sand

• A particle of sand

• A grain of sand

• A drop of sand

How does understanding particles help explain dissolving?

• It explains that sugar particles are larger than water particles

• It suggests that sugar particles float on water

• It shows that sugar and water are made of different substances

• It helps visualize sugar particles filling spaces between water particles

What happens to sugar when it is added to water?

• It breaks into individual particles

• It floats on the surface

• It sinks to the bottom

• It evaporates

Why can't you see sugar after it dissolves in water?

• Because it evaporates

• Because it turns into water

• Because particles are too small to see

• Because it changes color

What is the role of stirring in the dissolving process?

• It makes the water colder

• It helps sugar particles spread throughout the water

• It causes sugar to evaporate

• It changes the color of the water

What is the main reason sugar dissolves in water?

• Because sugar is heavier than water

• Because both sugar and water are made of particles

• Because sugar is lighter than water

• Because water is warmer than sugar

What happens to sugar particles after they dissolve in water?

• They disappear completely

• They fill the spaces between water particles

• They settle at the bottom

• They float to the top