4th grade
What are the main agents of weathering?
Water, ice, wind, or vegetation.
What should you do to identify materials based on their properties?
Make observations and measurements.
What are the two main sources from which plants get materials for growth?
Air and water.
What is the movement of matter among plants, animals, decomposers, and the environment called?
Food Web
What is matter made of?
That matter is made of particles too small to be seen.
Give an example of erosion by water.
The gradual carving of a river into the land.
Give an example of a material property that can be observed.
Answers will vary, color size ect.
Why is sunlight important for plants?
Sunlight is crucial for photosynthesis, the process by which plants produce their own food.
Give an example of matter transfer in a Food web.
Plants absorb carbon dioxide during photosynthesis. Consumers eating produces. Decomposers breaking down organisms
Give an example of matter.
Answers will vary
How does wind contribute to weathering?
It can carry and deposit sand particles, causing abrasion.
How can you identify materials based on their properties using measurements?
By comparing measurements of properties such as length, mass, or volume.
How do plants obtain water from their environment?
Through their roots, which absorb water from the soil.
Name a decomposer involved in the movement of matter.
Mushroom, Fungi, Snail, Worms, Bacteria
How can matter be represented at a scale that allows it to be seen?
Using models, such as visual representations or diagrams.
What are the two main properties of waves?
Amplitude and wavelength.
Explain why it is important to identify materials based on their properties.
Different materials have different uses and properties, so identifying them correctly is essential for various applications.
Explain how plants use carbon dioxide from the air.
Plants take in carbon dioxide during photosynthesis to produce glucose (their energy source).
Explain the process of matter transfer between animals and plants.
Animals eat plants and obtain nutrients, then release waste that nourishes the soil.
What tool can be used to observe and study particles that are too small to be seen?
Microscope
Describe an example of a real-life wave.
Answers will vary
What examples of materials can be identified based on their properties?
Metal, plastic, wood
What is the role of nutrients in plant growth?
Nutrients provide essential elements for plant development, such as nitrogen, phosphorus, and potassium.
How does matter return to the environment in a food web
Through decomposition
Draw a diagram for solids liquids and gasses
Answers will vary.