Blood Spatter Analysis Techniques

The video tutorial explains how to conduct experiments to find angles of impact using a box and a protractor. It guides students through setting up the station, using a clipboard and peg to create different angles, and observing blood spatter patterns. The tutorial emphasizes the importance of understanding how gravity affects the angle of impact and provides detailed instructions for measuring the length and width of blood spatter. Students are encouraged to record their findings and understand the relationship between angle and spatter shape.

What tools are introduced for finding angles of impact in the blood spatter analysis?

• A ruler and a compass

• A box and a protractor

• A scale and a pencil

• A magnifying glass and a ruler

What is the first step when using the box setup for blood spatter analysis?

• Use a magnifying glass to inspect the box

• Fill the box with water

• Insert the peg into different holes

• Place the clipboard at the top of the box

How should the clipboard be positioned in the box setup?

• Leaning against the peg at the base

• At the top of the box

• Outside the box

• Floating in the air

What indicates the length of the blood spatter?

• The entire drop including the tail

• Only the tail of the drop

• The drop without the tail

• The width of the drop

Why is it important to consider gravity when analyzing blood spatter angles?

• It makes the blood evaporate

• It alters the size of the drops

• It affects the angle of impact

• It changes the color of the blood

What should you do if the box is not available for the experiment?

• Use a ruler instead

• Use a protractor at your desk

• Skip the experiment

• Use a magnifying glass

How should the protractor be used in the absence of the box?

• Align it with the clipboard at zero

• Use it to draw circles

• Place it flat on the table

• Hold it vertically

What is the correct way to measure the angle of impact using a protractor?

• Measure from the top of the clipboard

• Measure from the zero mark on the protractor

• Measure from the center of the clipboard

• Measure from the side of the clipboard

What is the effect of a sharper angle on the blood spatter pattern?

• It creates a larger drop

• It creates a smaller drop

• It creates no tail

• It creates a longer tail

Why is it important to record the measurements accurately?

• To ensure the experiment is fun

• To compare with other groups

• To make the paper look neat

• To understand the impact of angles on spatter