explorer

You receive a message from a friend who is lost and you want to try to find them.

• GPS

• GPR (ground penetrating radar)

• Magnetometer

You want to see if there are any old coins buried underground.

• GPR

• Magnetometer

• Drone

You want to find out if there are any old buildings under the ground.

• GPR

• Magnetometer

• GPS

Modern technology saves scientists effort and time.

• True

• False

Only engineers and scientists use modern technology.

• True

• False