Changes Around Us Quiz

What is a chemical change?

• A process in which substances remain the same

• A process in which no new substances are formed

• A process in which one or more substances are converted into different substances with different properties

• A process in which energy is not involved

Give an example of a chemical change.

• Burning of wood

• Mixing salt and water

• Melting ice

• Cutting paper

What happens when oxygen is present during a change?

• It supports combustion and helps in the process of burning.

• It has no effect on the change

• It causes the change to slow down

• It prevents the change from happening

What happens when oxygen is absent during a change?

• Incomplete combustion or a different chemical reaction

• Formation of water

• No change at all

• Complete combustion

What is a slow change?

• Sudden change

• Gradual change

• Fast change

• Abrupt change

Give an example of a fast change.

• A snail moving

• A glacier melting

• A shooting star

• A sloth climbing a tree

What is a periodic change?

• A change that happens randomly

• A change that only occurs once

• A change that has no pattern

• A change that occurs at regular intervals or cycles

What are some examples of slow changes?

• Volcanic eruption, earthquake, tsunami

• Seasonal changes, weathering, growth of plants

• Erosion, aging, movement of tectonic plates

• Fossilization, mountain formation, continental drift

What are some examples of fast changes?

• Stable weather patterns

• Gradual shifts in market trends

• Sudden weather changes, rapid technological advancements, quick shifts in market trends

• Slow changes in technology