6th Grade Science 1st Semester Test

Front

What is the powerhouse of the cell that breaks down food to make energy?

Back

Mitochondria

Front

Which system brings in oxygen and moves out carbon dioxide?

Back

Respiratory system

Front

What is the transfer of thermal energy by electromagnetic waves called?

Back

Radiation

Front

What type of wave travels perpendicular to the direction of the source's motion?

Back

Transverse wave

Front

In what process is the energy of a wave transferred to the material it encounters?

Back

Absorption

Front

What organelle is responsible for protein synthesis in the cell?

Back

Ribosomes

Front

What is the function of the nucleus in a cell?

Back

It contains the cell's genetic material and controls its activities.

Front

What is the main function of the circulatory system?

Back

To transport blood, nutrients, and oxygen throughout the body.

Front

What is convection?

Back

The transfer of thermal energy through the movement of fluids (liquids and gases).

Front

What is conduction?

Back

The transfer of thermal energy through direct contact between materials.