3rd Grade Science Experiments
Thinking Like a 21st Century Scientist/Engineer:
Science Tools and Safety / Scientific Method
Scientific Method
1. Ask a Question
2. Hypothesize
3. Predict and Plan an Investigation
4. Experiment
5. Draw Conclusions
1. Ask a Question
2. Hypothesize
3. Predict and Plan an Investigation
4. Experiment
5. Draw Conclusions
Life Sciences: Behavior, Growth, and Change
Life Science: Behavior, Growth, and Changes
Offspring resemble their parents and each other.
Individuals of the same kind differ in their traits and sometimes the differences give individuals an advantage in surviving and reproducing.
Plants and animals have life cycles that are part of their adaptations for survival in their natural environments.
Offspring resemble their parents and each other.
Individuals of the same kind differ in their traits and sometimes the differences give individuals an advantage in surviving and reproducing.
Plants and animals have life cycles that are part of their adaptations for survival in their natural environments.
Grass Seed Experiment
In preparation for Earth Day, we are exploring how grass grows under different conditions. One grass seed plant is being watered with water, one is being watered with salt water and the third plant is being watered with water and oil. Each student wrote their own hypothesis to predict how each plant will grow. The class enjoys checking the daily progress of each plant!
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Our grass seed experiment is complete! It was easy to see that plant B did not grow. We learned that salt water is not good for plants. Plant A and C look very similar but when we used our other senses, it was clear that one plant was much healthier than the other. We touched the soil and noticed that the soil of plant C felt hard and oily. Plant A's soil was soft and moist. We looked through the side of the cups and could see that plant A had nice, dark soil. Plant C had soil that looked white and cloudy. We concluded that we would rather have soil like plant A in our yard and plant A grew the best. We learned that using water to care for our grass and plants is best.
Matter and Forms of Energy
Physical Science: Matter and Forms of Energy
All objects and substances in the natural world are composed of matter.
Matter exists in different states, each of which has different properties.
Heat, electrical energy, light, sound and magnetic energy are forms of energy.
All objects and substances in the natural world are composed of matter.
Matter exists in different states, each of which has different properties.
Heat, electrical energy, light, sound and magnetic energy are forms of energy.
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Earth's Resources
Earth and Space Science: Earth's Resources
Earth's nonliving resources have specific properties.
Earth's resources can be used for energy.
Some of Earth's resources are limited.
Earth's nonliving resources have specific properties.
Earth's resources can be used for energy.
Some of Earth's resources are limited.