Science Week 8 Ecosystems

Science Week 8 Ecosystems

Studies Weekly

1. Ecosystems

• living (biotic) and non-living (abiotic) things in biomes are balanced

• temperature and precipitation (rain) determine type of ecosystem

• Terrestrial biomes = land

• Aquatic biomes = water

Multiple Choice

The sun, rock, and soil are non-living parts of an ecosystem. Non-living things are called...

• biotic

• abiotic

• terrestrial

• aquatic

According to the graph, describe the Tundra (Hot/Cold & Dry/Wet)

Describe the desert. Describe the rainforest.

2. Types of Biomes

• Grassland

• Desert

• Tropical rain forest

• Temperate rain forest

• Temperate deciduous forest

• Tundra

• Freshwater and saltwater (the largest biome)

Multiple Choice

Which biome is the largest?

• freshwater biome

• desert biome

• tundra biome

• salt water biome

Grassland / Savanna biome (trees only found near rivers and stream with rich soil)

Desert Biome (very little rain fall, can be very hot or very cold)

Grassland/Savanna animals

Tropical rain forest biome (found near the equator)

Tropical Rainforest Animals

Temperate rain forest biome (found along coasts in North America and are cooler than tropical rain forests)

Temperate rain forest animals

Temperate deciduous forest biome (has changing seasons and changing leaf colors)

Temperate deciduous forest animals

Tundra biome (near the North Pole, has permafrost layer)

Tundra animals

Lakes, swamps, rivers, ponds, streams, some wetlands

Salt water biome (largest biome)

Multiple Choice

Which biome is found near the equator?

• temperate deciduous forest

• tropical rain forest

• desert

• freshwater

Multiple Choice

Swamps, ponds, and rivers are examples of which biome?

• salt water biome

• tundra biome

• freshwater biome

• Temperate rain forest biome

3. Food chain and Food webs

• All living things need energy from food

• Food chains link producers (plants) and consumers

• decomposers (fungus and bacteria) break down dead organisms

• arrows show movement of energy

Example of food web: What would happen if you eliminated the hawk?

Multiple Choice

In a food chain, producers are...

• predators

• prey

• plants

• carnivores

Multiple Select

Which of the following are consumers?

*pick 2 answers*

• trees

• sunlight

• mouse

• hawk

• soil

4. Human Impact

• Humans destroy ecosystem by cutting trees, bringing invasive species, and using pesticides

• Inspectors stop people from bringing in new plants and animals

• Ecologists study the biome community balance (example: Rachel Carson)

Ecologist Rachel Carson famous for writing "The Sea Around Us". She studied pesticides and how they can flow into our water and our oceans. This led to the creation of EPA (environmental protection agency)

Multiple Choice

Why is it important for ecologists like Rachel Carson to study ecosystems and human impact?

• to make earth-saving changes to protect it

• to find new chemicals to use on plants

• to explore new oceans around us

Multiple Choice

Why is it important for ecologists like Rachel Carson to study ecosystems and human impact?

• to make earth-saving changes to protect it

• to find new chemicals to use on plants

• to explore new oceans around us