Front

Can all changes be reversed?

Back

Some changes can be reversed, such as physical changes, while others, like chemical changes, cannot.

Front

Can popcorn go back to its original kernel shape after popping?

Back

No, once popcorn has popped, it cannot return to its original kernel shape.

Front

Which of the following is NOT a liquid? (Water, Juice, Honey, Ice)

Back

Ice is not a liquid; it is a solid form of water.

Front

What is a hypothesis?

Back

A hypothesis is a prediction about what will happen in an experiment.

Front

What is the purpose of testing different materials in engineering?

Back

The purpose is to determine if the materials work for the intended application.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is a chemical change?

Back

A chemical change results in the formation of new chemical substances and involves a change in the chemical composition.

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What is an experiment?

Back

An experiment is a procedure carried out to support, refute, or validate a hypothesis.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.