4th Grade Science: Lesson 4-5

An alternative mode of transportation that is good for the environment is Bicycles. Bicycles produce zero emissions, do not rely on fossil fuels, and have a minimal environmental impact. They are an eco-friendly and sustainable means of transportation, promoting reduced air pollution and a smaller carbon footprint. Bicycles also promote physical activity and are a green transportation option in urban areas, contributing to reduced traffic congestion and a healthier environment.

Driving a car has a negative impact on the environment because cars emit greenhouse gases, such as carbon dioxide, that contribute to climate change. Additionally, cars release pollutants into the air, including nitrogen oxides and particulate matter, which can harm human health and contribute to air pollution. Furthermore, the production and disposal of cars also have environmental impacts, such as the extraction of raw materials and the generation of waste. Overall, the use of cars for transportation contributes to environmental degradation and is detrimental to the environment.

All of the listed factors (temperature, availability of food, and moisture) can significantly influence the habitat suitability for an organism. Temperature affects the metabolic processes and physiological functions of organisms, determining their ability to survive in different climates. Availability of food is crucial for an organism's survival and reproduction, as it provides energy and nutrients. Moisture is essential for many organisms, as it affects their hydration, respiration, and overall functioning. Therefore, all of these factors collectively impact where an organism can live.

The classroom door is made of trees, which are a renewable resource. Trees can be replanted and grown again, making them a sustainable material for construction.

This farm is using renewable energy as a resource for energy. Renewable energy refers to energy that is derived from natural sources that are constantly replenished, such as sunlight, wind, and water. Unlike nonrenewable resources like fossil fuels, renewable energy sources can be used repeatedly without depleting them. Therefore, this farm is likely utilizing sustainable and environmentally friendly methods to power its operations.

Gasoline is made from oil, which is a nonrenewable resource. Oil is extracted from the ground through drilling and then refined into various products, including gasoline. This fossil fuel is formed over millions of years from the remains of ancient plants and animals. It is a limited resource that cannot be replenished at the same rate it is being consumed, making it nonrenewable.

The correct answer is "the use of less of something to make its supply last longer." This definition of conservation refers to the practice of reducing consumption in order to preserve resources and ensure their availability for a longer period of time. It emphasizes the importance of using resources efficiently and responsibly to minimize waste and environmental impact.

Nonrenewable resources are natural resources that cannot be easily replenished or regenerated in a short period of time, such as fossil fuels (coal, oil, natural gas) and minerals (like iron, copper, and gold). While it is true that these resources cannot be made again on a human timescale, they can be formed over millions of years through natural processes. Therefore, the correct answer is False, as nonrenewable resources can be made again, but at a much slower rate than they are being consumed.

Nonrenewable resources are those that cannot be easily replaced or replenished within a short period of time. Soil, limestone, oil, coal, and natural gas are all examples of nonrenewable resources because they are formed over millions of years and cannot be quickly replenished. Water and wind, on the other hand, are renewable resources as they are naturally replenished through the water cycle and atmospheric conditions.