Evidence & Investigation Unit Test

Test your forensic science skills! Explore evidence, fingerprints, and investigation techniques.

Key Vocabulary Match each vocabulary term to the correct definition. Evidence Information that can help to prove whether a belief is true or not. Investigation A formal inquiry about something or someone. Observation The gathering of information by using our five senses. Inference An explanation for an observation you have made based on your past experiences and prior knowledge. Chromatography A process for separating different components from a mixture. Graphology The study of handwriting. Detective A person who investigates crimes and gathers information. Suspect A person who is suspected of a crime. Motive An inner drive that causes a person to do something or act in a certain way. Crime An act committed in violation of the law. Fingerprint Analysis Write the name of each type of fingerprint. arch whorl loop Ridge Characteristics Label each picture with the correct ridge characteristic – delta, lake, ridge ending, island, or fork. fork lake ridge ending island delta Footprints List one class characteristic and one accidental characteristic for the shoe print below. The RCMP officer tells you that when he first came to the crime scene, the deer carcass and the fire were still warm. The officer used this evidence to determine the: motive for the crime time of the crime witness suspects Which of the suspects could have left the shoe prints at the campsite? suspect 1 or 2 suspect 1 or 4 suspect 2 or 3 suspect 2 or 4 Based on the information in this chart, which of the suspects was most likely at the campsite? suspect 1 suspect 2 suspect 3 suspect 4 The RCMP officer explains that a chromatography test was used to help compare the ink found on an envelope with the ink from each suspect’s pen. Which of the following steps is not important when carrying out a chromatography test? Watch the action of the water as it reaches the coloured line on the test paper. Empty the water from the cup into a storage container. Draw a line with a pen on a strip of test paper. Hang the strip of test paper so it touches the water in the bottom of a cup. The partial bike tire track that Megan found in the mud matched the: Akko tire Pyron tire Descan tire Fostier tire Based on what he saw, Marie's dad was angry because he inferred that Marie: and a friend each drank from two different cups. and a friend were trying on different lipsticks. had three friends over instead of one. drank from four different cups. The estimated height of an individual who leaves a 28.5 cm footprint is: 200 cm tall 190 cm tall 180 cm tall 170 cm tall The fabric that was found at the crime scene is most likely: cotton fleece nylon spandex The ransom note was most likely written by: suspect w suspect x suspect y suspect z Visible prints left on a surface by a contaminant (such as blood or grease) are referred to by investigators as: Plastic prints Patent prints Latent prints Foot prints Match the word with its scientific description. Research Looking through books, web sites, or newspapers for information about your topic Materials A list of things needed to conduct the experiment Problem Always asked as a question Procedure The experiment. Hypothesis Your best solution or answer to the problem or question. Variable A factor that is changed during an experiment to see what will happen Brands A, B, and C of hamburger meat are tested for the amount of fat in each. Each brand will be cooked for exactly 7 minutes. The same pan will be used for each test. Each brand will be drained for exactly 2 minutes by using a strainer and measuring cup to determine the amount of fat that is drained.Which of the variables is the INDEPENDENT VARIABLE? The cooking time The amount of fat drained The brands being tested The straining of the meat after cooking Brands A, B, and C of hamburger meat are tested for the amount of fat in each. Each brand will be cooked for exactly 7 minutes. The same pan will be used for each test. Each brand will be drained for exactly 2 minutes by using a strainer and measuring cup to determine the amount of fat that is drained.Which of the variables is the DEPENDENT VARIABLE? The cooking time. The amount of fat drained. The brands being tested. The straining of the meat after cooking. Brands A, B, and C of hamburger meat are tested for the amount of fat in each. Each brand will be cooked for exactly 7 minutes. The same pan will be used for each test. Each brand will be drained for exactly 2 minutes by using a strainer and measuring cup to determine the amount of fat that is drained.Which of the variables are the CONTROLLED VARIABLES? The cooking time. The amount of fat drained. The brands being tested. The straining of the meat after cooking. Look at the image to decide if the statement is an observation or an inference. OBSERVATION Three children are holding a brush. One girl has a bow in her hair. The dogs have ears. INFERENCE The dogs are going to be brushed. The dogs are all friends. The dog with black ears is tired. A time machine has been invented that travels into the past and takes pictures, sending them to the present. Look at the picture below and interpret what you see. Observation The volcano is erupting. The camptosaurus is leaving tracks in the ground. There are plants growing in the water. There is a tree growing next to the river. There are bones from a dead animal by the shore. Lava is coming down the sides of the volcano. The camptosaurus has sharp teeth for eating meat. The tree looks like a palm tree. Inference The camptosaurus will run to the water to escape. The stegosaurus will run to the water to escape. The ground where the camptosaurus is walking, is wet. The camptosaurus is going into the water to eat the plants. The climate is warm. The stegosaurus is an herbivoire. The camptosaurus killed the animal. Some more bones are in the water. The camptosaurus can't swim and will drown. Match the animal with its print. Deer Rodent Dog Hopper