Want to know everything № 7 (1958)

1. The boy behind the Desk reading a chemistry textbook.

Another boy is cutting triangles out of tin.

The boy assembled a solar panel.

A boy cooks potatoes on a solar panel.

A young inventor is frying eggs on a solar battery.

Model of a solar power plant.

The fan is powered by a solar panel.

Operation of the radio from a solar battery.

Solar panels on satellites and space stations.

2. The guys crowded around buckets of water and pulled out fish.

The burbot that was taken out of the bucket was blind.

Blind burbot in the aquarium.

Burbot swims freely and chases small fish.

The teacher explains in the drawing of the fish how the fish is oriented in space.

3.The boy is on the exhibition of products of the chemical industry.

Artificial colors and varnishes, plastic materials.

Panorama of the exhibits.

Layout of a house where everything is made of artificial materials.

Products made of polyethylene.

Nylon fabrics and threads.

The electric motor, covered with waterproof plastic, works in water.

Plastic boat.

Racing car made of plastic.