In this activity about flight, learners explore how high they can jump. Learners dip their finger in ink or dirt, then jump as high as they can and mark paper attached to the wall. Learners challenge each other to beat their records, label standing and jumping marks, and measure the vertical distances. Use this activity to introduce the forces of flight (weight, thrust, lift, and drag). Follow this activity with a related, optional challenge "How Long Can You Fly" to examine how long learners can stay in the air when they jump. This activity is also related to other activities in the SMILE Pathway: Bernoulli Brain Teasers and Squeeze the Stream.