Dea is making a food chain model: grass → grasshopper → frog → snake → eagle. If the frogs go extinct, what will happen?
The number of grasshoppers will increase
If an object does not stick to a magnet, it is most likely made of...
wood, plastic, non magnetic
16. In a park, Siti sees grass, flowers, butterflies, rocks, and water in a pond. Which are the biotic components in the park?
grass and flower
Objects that can be attracted by magnets are usually made of..
some metal such as iron or steel
Gading saw his mom using a bag that closes without a zipper. It has small magnets inside the flap. What are the benefits of using magnets in the bag flap?
Makes it easy to open and close the bag, To keep the handbag closed
what plants need to grow?
sunlight, water, soil and nutrients
Asyraf found two metal objects in his house: one sticking to the magnet, the other not. What can Bayu conclude from this? Explain why only one of the metals stuck to the magnet.
because not all metal are magnetic, only some metal like iron, steel can stick to magnet.
Suddenly, many trees were cut down around Lani's house. What are the effects of deforestation?
The temperature increases, Animals lose their habitats
Sinta walks through a park and sees flowers, butterflies, rocks, and the warm sunlight. Which abiotic things help the biotic things grow?
Sunlight, water
In a pond, Lina sees fish swimming and insects flying. She also sees algae and feels the wind. Which biotic things in the pond need water to live?
fish and algae
look at the picture. carnivore/omnivore/herbivore?
omnivore
1. Riko plants a seed in the soil. He gives it water and places it in the sun. After some days, a plant grows. Which non-living (abiotic) things helped the plant grow?
Soil, sunlight, water
A food chain in the forest: Plant → Mouse → Owl. What is the role of the mouse and owl in this food chain?
Mouse as primary consumer, owl secondary consumer
Corn plants grow in the field. Grasshoppers eat the corn leaves. Sparrows eat the grasshoppers. Construct the correct food chain!
Corn leaves > Grasshoppers > Sparrows
f the sunlight is blocked for many days, what is most likely to happen to the moss and plants?
They will stop growing well
look at the picture, magnetic or non magnetic?
non magnetic
Caterpillars eat leaves. Sparrows eat caterpillars. Cats eat sparrows. What are the roles of the sparrow and the cat?
Sparrow as secondary consumer, Cat as tertiary consumer
Rice is eaten by mice. Mice are eaten by snakes. Eagles eat the snakes. What would happen if eagle population decreased?
Snake population might increase, Mouse population would decrease
During science class, the teacher says decomposers break down dead things. Which are decomposers that help return nutrients to the soil?
Fungi and Bacteria
1. A plant need water, 2. A calf play with calf, 3. A cat eats a mouse, 4. A frog on a rock. Which are examples of biotic-abioyic interaction?
A plant need water, A cat eats a mouse
A bird eats a worm. The worm lives in the soil and eats dead leaves. What are the roles of the worm and bird?
worm can as be producer and decomposer, bird as consumer