Boiling VS Evaporation
Which process happens only at the surface of water?
Evaporation
Which soil is best for plant growth?
Loam soil
What type of rock forms when magma or lava cools?
Igneous rock
What process changes sediments into sedimentary rock?
Sedimentation
In a food chain, what do the arrows represent?
The direction of energy flow
Why do wet clothes dry faster in sunlight?
Heat increases evaporation.
Which soil drains water fastest?
Sandy Soil
Which type of rock can contains fossils?
Sedimentary rock
What happens to metamorphic rock if it melts?
It turns into magma
What is the difference between a food chain and a food web?
A food chain shows one path of energy flow, while a food web shows many connected food chains.
TRUE or FALSE:
Boiling can happen without bubbles.
False
A farmer notices plants dying because water stays trapped. Which soil might he have?
Clay soil
What can change a rock into a metamorphic rock?
Heat and pressure
Fill in the blank:
Sedimentary Rock → __________ → Metamorphic Rock → __________ → Magma → __________ → Igneous Rock
Sedimentary Rock → Heat and pressure → Metamorphic
Metamorphic Rock → Melting → Magma
Magma → Solidifiction → Igneous Rock
In a food chain:
Grass → Rabbit → Snake → Hawk
Which living thing receives the Most energy, and which receives the Least energy? Explain why?
The grass (producer) receives the Most energy because it gets energy directly from the Sun.
The hawk receives the Least energy because energy is loss as it moves through the food chain.
Your tea is taking too long to become hot.
Would sunlight or a stove heat it faster? Why?
Because the stove gives more heat energy in a shorter time.
Why is loam good for plants?
Give TWO reasons.
1: It holds enough water for plants.
2: It contains nutrients and allows air to reach the roots.
Why does obsidian have very small or no crystals?
Because it cools very quickly.
A river carried small pieces of rock from the mountains to another area.
Which process is happening,what type of rocks it will make?
Erosion. It moves sediments from one place to another and later it can form sedimentary rocks.
What are producers and why they are important in a food chain?
Living things that produce or make their own food using the energy from Sun.
Because they make food and provide energy for other organisms.
Name TWO differences between boiling and evaporation.
1: Boiling happens throughout the liquid, while evaporation happens only at the surface.
2:Boiling forms bubbles, while evaporation does not.
"A student planted the same crop in the same soil every year. After some time, the plants became weak and unhealthy."
Explain why this happened and suggest one solution
Because the soil lost its nutrients by planting the same crop repeatedly.
One solution could be using crop rotation or adding fertilizer to the soil.
A scientist found a rock with large crystals underground.
Was the rock most likely formed from lava or magma? Explain why.
Magma, because rocks that cool slowly underground form larger crystals.
Explain how one rock can become all THREE types of rocks over time?
A rock can be molten inside a volcano then cools and solidfy to become igneous rock,Then this igneous rock could break into sediments and compact to become sedimentary rock, or goes under heat and pressure to become metamorphic rock.
In a food chain:
Algae → Small Fish → Big Fish → Eagle
Which organism would contain the Highest amount of toxins, and why?
The eagle, because toxins accumulate at higher levels of the food chain.