# Blood Composition

#### Introduction

Watch a three-minute video, "[Operation Ouch: Red Blood Cells](https://www.youtube.com/watch?v=xioe5KDKqXQ)".

#### Activity 1

Use playdough to make biconcave disks, the shape of a blood cell. Make different sizes: tiny white ones for platelets, medium red ones for red blood cells, and large white ones for white blood cells.

**![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXcJYIudgtGx04u445DXCudYJFwm5AuIDH9ZBBwF6-EO9puXWSoCgfEu3ud4v1PDzr4n-6a1WaD7rwEHxUmqcAZxvMEwe-xscE75OUXH9acQ1fdr6UX1RHtAcvr55H-czX-yQWiRMFGv6bNdTNbSFIpWZE6z?key=VZqyiLPPq34DFbksopDr-w)**

#### Activity 2

Use a spoon (or tweezers, or tongs) to scoop and sort red and white blood cells (white pony beads and red perler beads respectively).

**![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXcmEHhVcxRLR1QI5Igrt-z9jA9ey5AwOE0g0SUFkb-Ar0-EoEAVrxPPiqF8HPcqpBP_r6PIjNnL8jAsljh5n3Io6lvaXrd9ylT6_b6uj3nZaqAhm6wSSyL1CNyUrtLl-6S-2UfJf6_2kBXwfJUDzmWeSxFl?key=VZqyiLPPq34DFbksopDr-w)**

#### Lunch Snack

Make blood salad: strawberries for red blood cells, banana for platelets, apples for white blood cells, grapes for bacteria and viruses, yoghourt for plasma.

**![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXcQbtAmZmR0g3NPxCzDT5sh5M8eItee_gtJP1y5kehqeJGr74-Nkwue0hX0wHeB7yaNZFDO2L_inw4rf9PN0i96Bl6oOxij8Pl65LHfnqMxpk8ciBp4hTUfvQKav0ofV_e6BH6IKGtgJuKaEVNE-sKLwq4?key=VZqyiLPPq34DFbksopDr-w)**

#### Activity 3

Make a blood composition sensory bottle. Fill it 45% of the way with red perler beads (red blood cells), add a sprinkling of white seed beads (platelets), one white pony bead (white blood cell), and fill it with oil (plasma).

**![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXeEEZpRs6zOInTnNZJUcUld-ur6QxAg1-WHgv-LPqGKBghM8er9dg5giwJiEUCFONtY5UbKp3F0R0GJf8B6Ft5ni63lTHDStfs3VoGCRLEhFdV-x5adDLdmyX9gwmtRYIxsJ4Nqay9DonQK6lXU-F8Z5TQ?key=VZqyiLPPq34DFbksopDr-w)![](https://lh7-rt.googleusercontent.com/docsz/AD_4nXfTMVYeWrQw-s9figRT6flPWBM8imrPz36E2svEj8uLnGemx3IT75rCISTOqQSUlIpg69skYygq9DRzlV6wAhCRQlwRceXctlXSmBXcZjkNbC5kwToTcumW-Qw3X1qSR31TBXhKLZeBgoJ7zCO41rk8P7M?key=VZqyiLPPq34DFbksopDr-w)**