8th Grade Science STAAR Review 2025- 4th Period

Front

What is the Summer Solstice?

Back

The Summer Solstice is the longest day of the year, occurring when the Northern Hemisphere is tilted toward the sun.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What is a physical change in the digestive system?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition, such as teeth grinding food.

Front

Where does digestion begin in the human body?

Back

Digestion begins in the mouth, where food is mechanically broken down by teeth and mixed with saliva.

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object possesses due to its motion.

Front

What is the Vernal Equinox?

Back

The Vernal Equinox is the point in spring when day and night are approximately equal in length.

Front

What is the Winter Solstice?

Back

The Winter Solstice is the shortest day of the year, occurring when the Northern Hemisphere is tilted away from the sun.

Front

What is the Autumnal Equinox?

Back

The Autumnal Equinox is the point in fall when day and night are approximately equal in length.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is the role of saliva in digestion?

Back

Saliva helps to break down food chemically and moistens it for easier swallowing.