Which type of nuclear radiation is the most penetrating and can pass through several layers of concrete shielding?

Gamma Rays

Explanation:

Gamma rays are the highest penetrating power. It is  emitted from the nucleus of a radioactive atom during radioactive decaying. They are capable of travelling many yards in air. Gamma rays can easily penetrate a human body. Shielding this very high penetrating type of ionizing radiation requires a thick dense material such as several inches of concrete or lead.

Thus, gamma rays is the most penetrating and can pass through several layers of concrete shielding.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.