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Science - 4th Grade
Standard 5 Objective 4
This activity will help students determine if a bug is an insect or a spider.
Most students think that a spider is an insect. Spiders and insects are both invertebrate animals. Some invertebrates have a tough covering on the outside of their bodies. This covering is called an exoskeleton. This group of animals are known as arthropods. The characteristics or arthropods included jointed legs and a segmented body. The arthropod group is divided up into different families of insects, spiders (arachnid), millipedes and centipedes and shrimp, lobster and crabs. Insects make up most of this group. Even though spiders are part of the arthropods group, they are very different from insects. Insects have six legs, three main body parts, one or two pairs of wings and two antennae. Arachnids are also arthropods. Spiders, crabs, scorpions and ticks are examples of arachnids. They have eight legs and only one or two main body sections. Most arachnids do not have wings and they do not have antennae.
1. Use science process and thinking skills
2. Manifest scientific attitudes and interests
3. Understand science concepts and principles
4. Communicate effectively using science language and reasoning
Invitation to Learn
Bring in live and/or dead examples of spiders and insects. Set up live insects and spiders in their environment to give the students a chance to observe the insect moving around. Dead insects will give the students a change to closely look at the insects and spiders bodies. Let students look through the magnifying glass to make observations. This will give you an opportunity to make an assessment of students prior knowledge.
Homework & Family Connections