TCAP Practice Test

Front

What is the reason some stars twinkle less brightly than others, even if they are larger?

Back

The brightness of stars can be affected by distance; a large star far away may appear less bright than a smaller star that is closer, similar to how a campfire seen from a distance is less bright than a nearby candle.

Front

What is a sign that a chemical reaction has occurred?

Back

The appearance of a solid substance when two liquids are mixed can indicate a chemical reaction.

Front

What can increase the speed of a toy car?

Back

Shortening the track where the force is applied can help speed up the car.

Front

What do fossils provide evidence of?

Back

Fossils provide evidence of plants and animals that lived long ago.

Front

What is an example of a learned behavior in animals?

Back

A dog retrieving a stick for its owner is an example of a learned behavior.

Front

What is the process of evaporation?

Back

Evaporation is the process where liquid turns into vapor, often seen when water is boiled.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is the role of force in motion?

Back

Force is a push or pull that can change the motion of an object, such as speeding up a toy car.

Front

What do scientists study to understand Earth's history?

Back

Scientists study fossils to learn about the organisms that lived in the past and how Earth has changed over time.

Front

What is migration in animals?

Back

Migration is the seasonal movement of animals from one region to another, often for breeding or food.