Science Review 4th grade Week 17

The picture below shows sand dunes The picture below shows sand dunes. What natural force likely shaped this landform? ice water wind gravity

The natural process of breaking down rock into smaller pieces is _______. weathering erosion soil deposition

The Earth Evaporation Ocean The Sun A teacher made a model of the water cycle like on this picture. In this model, what does the lamp represent? The Earth Evaporation Ocean The Sun

Some animals get their energy from plants Some animals get their energy from plants. Where do plants get their energy? Air Sun Earth Water

The energy that causes to form water vapor comes from: The clouds Underwater mountains Chemical reaction in the sea The Sun

When a candy bar is heated by the sun, all of the following are likely to be seen EXCEPT – the candy bar will be the same the candy bar will change into a liquid the candy bar will melt the candy bar will change its shape

A chef is making spaghetti for a large group of people A chef is making spaghetti for a large group of people. In order to have enough water, he must boil the water in two different pots. Both pots are metal, but one has wooden handles, and the other has metal handles. What recommendation would you make for handling the two different pots? Use a hot pad to handle the pot with the wooden handles because wood is a good conductor of thermal energy Use a hot pad to handle the pot with the metal handles because metal is a good conductor of thermal energy Use a hot pad to handle both pots, because the handles on both pots will get hot There is no need to use hot pads because neither of the pot handles will get hot.

C A B Which shows the illustrations in order from A to C? Solid, liquid, gas C. Liquid, solid, gas Gas, liquid, solid D. Gas, solid, liquid

needs to be changed glows brighter is turned off flickers on and off By creating a closed circuit, an object that needs electricity to operate will work. An example of this would be a light in a room. When the light is working, it creates a closed circuit. If the circuit is open, the light in the room ____________. needs to be changed glows brighter is turned off flickers on and off

What is the process that changes a liquid to a gas? condensation precipitation water cycle evaporation

Which of the following dissolves in water? Sand Salt Dirt Oil

A student puts a sample of matter in a closed container A student puts a sample of matter in a closed container. The matter takes the shape of the container and spreads out to fill all of the space. What is the state of the sample? Gas Solid Liquid Solution

To save on heating bills, what should the roof of a building should be lined with? A thermal conductor A thermal insulator Nothing A layer of air 73

If one bulb is removed from a series circuit, the other bulbs will ______________. dim get brighter flicker go out

Which sentence describes a liquid? Particles slide past each other. Particles are arranged in a tight pattern Particles stay near their neighbors Particles bounce away from each other.

The movement of bits of rock or soil by wind and water is called ________. weathering erosion contour plowing deposition

Can you infer from the picture which rock layer is the oldest? B C D

Which kind of land is most likely to experience erosion? Flat land because the water will flood and the wind will blow across it. Sloped land because the water will run swiftly down it washing away soil. Flat land because the plants will cover the land and grow forests. Sloped land because the plants will not grow as it is too cold.

A ________ has a definite shape. solid sugar-water solution gas liquid

Grass grasshoppers mice snakes Food Chain Grass grasshoppers mice snakes The arrows show the flow of energy in the food chain. Where does grass get its energy? Wind Rocks the Sun Grasshoppers

Most metals are good ________. switches conductors vibrations insulators

Which of these is NOT a force? Magnetism Weight Height Friction

Completing an experiment one time will assure reliable results. True False

A gas changes to a liquid by a process called _____. deposition evaporation condensation precipitation 42

What does this chart NOT show? SOIL SAMPLE COLD WET BROWN GRAVEL What does this chart NOT show? The color of the soil The temperature of the soil C. The amount of water in the soil D. The place where the soil was collected.

The process of pieces of weathered rock being moved to other places is called ________. erosion weathering wind storm rock cycle

In a _________, the particles are far away from each other and move quickly. gas solid mass liquid

Soil Samples Which soil sample is most likely sand? Sample Color Texture 1 tan rough 2 gray slippery 3 brown smooth 4 white sticky Which soil sample is most likely sand? Sample 1 B. Sample 2 C. Sample 3 D. Sample 4

Two magnets are placed next to each other Two magnets are placed next to each other. Why do they push (repel) each other apart? The north poles of both magnets are facing each other. One magnet is made of silver. They each have one weak end. The north pole of one magnet is facing the south pole of another magnet.

Anything that takes up space and has mass is called ____. solid matter mass volume

Which of these is the best example of weathering? A volcano erupts blowing lava all over the land. An earthquake cracks the land moving fences and homes. Water freezes in the cracks of rocks and breaks up the rock. A tornado spins sand and trees around and finally drops them along a highway.

Thomas Alva Edison invented the light bulb Thomas Alva Edison invented the light bulb. He also helped Alexander Graham Bell work on the telephone. What kind of energy do both of these inventions depend on? Light Solar Sound Electrical 27

Which of the following changes occurs due to the ocean waves on the coastline? The surfers bring better business to the city. The rocky cliffs pounded by the ocean waves weather over time The beach becomes clean and the fish have a better place to live. The waves make the building of sandcastles impossible.

What process in green plants is powered by the sun’s energy? Digestion Circulation Respiration Photosynthesis

What is the state of matter that keeps its own shape and volume? Gas Solid Liquid Solution