1. Science Liquids and Solid Elementary students will get a kick out of mixing cornstarch and water together to form a polymer that could be called both a liquid and a solid.

2. Books “ Bartholomew and the Oobleck” by Dr. Seuss.“ Bartholomew and the Oobleck” by Dr. Seuss. “Who Messed Up My Sand” by Emily Sohn.“Who Messed Up My Sand” by Emily Sohn. “ Solids and Liquids” by Louise and Richard Spilsbury.“ Solids and Liquids” by Louise and Richard Spilsbury.

3. Polymer Recipe 1 plastic bin or dispan1 plastic bin or dispan Measuring cupMeasuring cup 1 box of cornstarch1 box of cornstarch 1 spoon1 spoon WaterWater Sponge for cleanupSponge for cleanup

4. Vocabulary Words Polymer Separate Solids Mixed Liquids Predict Substance Hypotheses Moisture Explore

5. Thinking Questions What happens when you squeeze the cornstarch with your hand?What happens when you squeeze the cornstarch with your hand? Can you think of anything else that acts like the polymer? Quicksand.Can you think of anything else that acts like the polymer? Quicksand. Is it a solid or a liquid?Is it a solid or a liquid? Can you make a ball with the Polymer?Can you make a ball with the Polymer? What happens when there isn’t enough moisture to the substance?What happens when there isn’t enough moisture to the substance?

6. Lesson Plan Goals for this lesson:Goals for this lesson: Make predictionsMake predictions Identify and describe a liquid and a solidIdentify and describe a liquid and a solid Change a liquid to a solidChange a liquid to a solid

7. Delaware Standards Natural and Application of Science and Technology, Grade level expectations. Enduring Understanding: Scientific inquiry involves asking scientifically oriented questions, collecting evidence, forming explanations, connecting explanations to scientific knowledge and theory, and communicating and justifying the explanation.Natural and Application of Science and Technology, Grade level expectations. Enduring Understanding: Scientific inquiry involves asking scientifically oriented questions, collecting evidence, forming explanations, connecting explanations to scientific knowledge and theory, and communicating and justifying the explanation.

8. Engaging Students As students what is the difference between a liquid and a solid.As students what is the difference between a liquid and a solid. Introduce one of the books listed in previous slide (depending on age of students).Introduce one of the books listed in previous slide (depending on age of students). Have students meet around science table while you mix the polymer (depending on age allow students to mix polymer).Have students meet around science table while you mix the polymer (depending on age allow students to mix polymer).

9. Engaging Students Ask students to predict what they think is going to happen to cornstarch when we add the water to it.Ask students to predict what they think is going to happen to cornstarch when we add the water to it. Allow all students to get their hands into the bin and try to make a ball out of the substance.Allow all students to get their hands into the bin and try to make a ball out of the substance. Have them squeeze it together and ask them to describe what happens.Have them squeeze it together and ask them to describe what happens. Have students stop and look at the substance in bin and describe what happens to the mixture when left alone.Have students stop and look at the substance in bin and describe what happens to the mixture when left alone.

10. Some of our students getting into their science activity. Note: PARENTAL PERMISSION BEFORE USING THIS PIC.

11. Experiment :Experiment : The oobleck experiment was an experiment involving change. It is the result of a physical change which we learned in our kit Mixtures and Solutions. Oobleck flows like a liquid, but reacts like a solid when compressed. The oobleck experiment was an experiment involving change. It is the result of a physical change which we learned in our kit Mixtures and Solutions. Oobleck flows like a liquid, but reacts like a solid when compressed. The mixture that resulted is a solid and liquid at the same time. If you make it into a ball, it loses shape when you throw it into the air. It can be placed in a container, but it will not take the shape of the container when removed. When you leave it in the sun, it loses its color becomes hard on top and mushy on the bottom, and it does not bounce. It is not edibleThe mixture that resulted is a solid and liquid at the same time. If you make it into a ball, it loses shape when you throw it into the air. It can be placed in a container, but it will not take the shape of the container when removed. When you leave it in the sun, it loses its color becomes hard on top and mushy on the bottom, and it does not bounce. It is not edible Oobleck behaves like a liquid when it is not under pressure. When you squeeze or press on oobleck, the water is temporarily forced out of the mixture and starch molecules are pressing against each other causing it to behave as a solid.Oobleck behaves like a liquid when it is not under pressure. When you squeeze or press on oobleck, the water is temporarily forced out of the mixture and starch molecules are pressing against each other causing it to behave as a solid.