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Blood Bottles! Inside your Outside worksheet and book activity

Updated: Jun 20, 2023

Our blood stream is a fascinating and complex system that plays a critical role in transporting nutrients, oxygen, and waste products throughout our body. It is composed of various components, namely red blood cells, white blood cells, platelets, and plasma.

This lesson and activity is designed to give a physical reprisentaion of what is in your blood stream and why its there.

What you will need for the lesson:

What you will need for the activity:

Red Blood Cells: Cinnimon Candies

Red blood cells, also known as erythrocytes, are the most abundant cells in the blood. They contain hemoglobin, a protein that binds oxygen and transports it from our lungs to various parts of our body. The shape of red blood cells is biconcave, which increases their surface area, allowing more oxygen to be carried in each cell. (this means it looks like a donut but instead of a hold it just like a bowl on both sides) Red blood cells have a lifespan of approximately 120 days, after which they are broken down and recycled by the liver and spleen.

White Blood Cells: Lima Beans

White blood cells, also known as leukocytes, are a vital part of our immune system. They come in different types, each with a specific function. Some white blood cells help to fight infections by engulfing and destroying bacteria, viruses, and other foreign invaders. Other types produce antibodies, which help to recognize and neutralize harmful pathogens. White blood cells are produced in the bone marrow and circulate throughout the blood, lymphatic system, and tissues.

Platelets: Rice

Platelets, also known as thrombocytes, are small fragments of cells that help in the process of blood clotting. When an injury occurs, platelets rush to the site and release chemicals that attract other platelets and form a plug to stop bleeding. They also help to activate a series of chemical reactions that eventually result in the formation of a fibrin mesh that reinforces the clot. Platelets are produced in the bone marrow and have a lifespan of approximately ten days.

Plasma: Corn Syrup

Plasma is the liquid component of blood and makes up around 55% of its volume. It is composed of water, electrolytes, hormones, enzymes, and various other proteins. Plasma helps to transport nutrients, electrolytes, and waste products to and from tissues. It also plays an important role in maintaining blood pressure, regulating pH, and circulating proteins such as antibodies that help to defend against infections.

In conclusion, our blood stream is an intricate system that depends on the precise interaction of various components to perform critical tasks such as carrying oxygen, fighting infections, and clotting blood. Red blood cells, white blood cells, platelets, and plasma all work together to ensure proper functioning of our body and maintain our overall health and well-being. Understanding how these components work is essential in appreciating the complexity of our blood stream and enabling us to make more informed decisions regarding our health.


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