TM Using these slides These slides are visual

TM Using these slides • These slides are visual aides and are designed to facilitate FOSS investigations in the classroom. They are not intended to replace the FOSS Investigations Guide. • These teaching slides and Guiding the Investigation should be used together. • These slides can be customized to include additional questions, directions, or animations. Slide 1

TM TM Insects and Plants Investigation 1, Part 2 – Larva, Pupa, Adult Slide 2

TM Mealworm Structures and Behaviors Dump your vial onto a paper plate. Place one mealworm back in the vial and observe with a hand lens. What structures, behaviors, and changes do you see? Structures Insects and Plants, 1. 2: Larva, Pupa, Adult Steps 1 -2 Behaviors Changes Slide 3

TM Focus Question • How do mealworms grow and change? Insects and Plants, 1. 2: Larva, Pupa, Adult Step 3 Slide 4

TM Mealworm Molting Observe your mealworms. Insects and Plants, 1. 2: Larva, Pupa, Adult Step 6 Slide 5

TM Mealworm Molting The mealworm will go through different stages during its life. The mealworm is in the larval stage. When the larva needs to grow, it first sheds (molts) its outer skin (exoskeleton). This is called molting. The old skin, also called a molt, is left behind. What do you think the tiny granular objects are at the bottom of the vial? Insects and Plants, 1. 2: Larva, Pupa, Adult Step 6 Slide 6

TM Pupae Observe your mealworms. Insects and Plants, 1. 2: Larva, Pupa, Adult Step 10 Slide 7

TM Pupae The mealworm has entered a new stage in its life cycle, called a pupa. It is alive, but it does not eat or drink. Insects and Plants, 1. 2: Larva, Pupa, Adult Step 10 Slide 8

TM Adults The beetle is in the adult stage of the mealworm. It is known as a darkling beetle. What changes do you think will happen next? Insects and Plants, 1. 2: Larva, Pupa, Adult Step 12 Slide 9

TM Beetle Structures Place your beetles on a paper plate or in a cup. Observe the beetle structures and behaviors. Are they the same as or different from the mealworm's? Structures Behaviors Adult Beetle Mealworm Insects and Plants, 1. 2: Larva, Pupa, Adult Step 15 Slide 10

TM Draw the Beetle All insects have three main body parts: head, thorax, and abdomen. antennae head thorax abdomen Insects and Plants, 1. 2: Larva, Pupa, Adult Step 16 Slide 11

TM Vocabulary Review stages Insects grow and change into different forms called ______. The stage our mealworms were in first is called _____. larva Mealworms shed their skin to grow. This is called _______. molting The tiny, grainlike objects at the bottom of the vial are ____. droppings Mealworms have lines on their body, which show the 13 ____. segments The stage of the mealworm when it does not eat or drink is called the _____. pupa Insects and Plants, 1. 2: Larva, Pupa, Adult Step 17 Slide 12

TM Vocabulary Review adult The final stage of the mealworm is called the _____. darkling beetle The adult mealworm is called a _______. An adult insect has three body parts called head, thorax, and abdomen ____________. legs Connected to the thorax are six _____. antennae Connected to the head are two ____. Insects and Plants, 1. 2: Larva, Pupa, Adult Step 17 Slide 13

TM Focus Question • How do mealworms grow and change? Insects and Plants, 1. 2: Larva, Pupa, Adult Step 18 Slide 14

TM Video – All about Water Ecosystems Insects and Plants, 1. 2: Larva, Pupa, Adult Steps 19– 23 Slide 15

TM Video – All about Water Ecosystems Habitat Plants/Animals How they meet their needs Ocean Bays Streams and Rivers Ponds and Lakes Wetlands or Marshes Insects and Plants, 1. 2: Larva, Pupa, Adult Step 20 Slide 16

TM Online Activities Insects and Plants, 1. 2: Larva, Pupa, Adult Step 24 Slide 17

TM Wrap-Up/Warm-Up • How do mealworms grow and change? Pair up with a partner to • share your answer to the focus question; • share your drawings of the mealworms over time. Insects and Plants, 1. 2: Larva, Pupa, Adult Step 25 Slide 18

TM All rights reserved. Copyright The Regents of the University of California. Developed at TM Photo credits: Cover slide: © lkordela/Shutterstock Notebook image: © photastic/Shutterstock Published and Distributed by Insects and Plants, 1. 2: Larva, Pupa, Adult Slide 19