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Matter: Composition and Properties
Matter: Changes & Conservation

Organisms: Food & Energy
Ecosystems: Matter & Energy
Pot Luck
100
Which of the following is true of the composition of all materials? A.All materials are made up of large parts that can only be seen by the human eye. B.All materials are made up of only one part. C.All materials are made up of living cells. D.All materials are made up of smaller parts that cannot be seen without magnification.
D
100
Katie pours 15 grams of sugar into a beaker that contains 300 grams of water. She stirs the mixture until she can no longer see any pieces of sugar in the water. How much does Katie's mixture of sugar and water weigh? A.300 grams B.285 grams C.15 grams D.315 grams
D
100
Shelby is planting seeds for a vegetable garden. She is planting the seeds in a sunny area. What else will the plants need to grow? A.rocks B.pollen C.sand D.water
D
100
Danielle made a compost bin for her backyard. She added things like grass clippings, dead leaves, food scraps, coffee grounds, and shredded paper to the bin every few days. She kept the materials in the compost bin moist. Image courtesy of EPA After several weeks, Danielle used the compost from the compost bin in her vegetable garden. The compost was very nutrient-rich and helped the vegetables in Danielle's garden grow. Where did the nutrients in the compost come from? A.The materials that Danielle put into the compost bin made nutrients out of sunlight and water. B.The materials that Danielle put into the compost bin changed into living organisms that released nutrients. C.The materials that Danielle put into the compost bin used nutrients to make their own food. D.The materials that Danielle put into the compost bin decomposed and released their nutrients.
D
100
During class, Janelle learned that all objects are made up of smaller parts. Later, she looks at a piece of paper, but does not see any smaller parts. Why doesn't she see any smaller parts? A.No objects are made up of smaller parts. B.The parts are only visible to scientists. C.The parts are too small to be seen with the human eye. D.Only some objects are made up of smaller parts.
C
200
At the store, Jada asked her mom to buy a bag of gummy bears. Jada's mom said she would buy the bears if Jada could think of a way to sort the bears into different groups based on one of their properties. Jada should tell her mom that she can sort the bears based on _______. A.color B.texture C.shape D.hardness
A
200
Michelle has a cup of hot coffee. The liquid coffee weighs 236 grams. Michelle adds a few teaspoons sugar and 25 grams of milk to the coffee. Michelle stirs the mixture until everything is combined. The mixture now weighs 271 grams. How many grams of sugar did Michelle add to the coffee? A.35 grams B.5 grams C.25 grams D.10 grams
D
200
Plants cannot survive without A.humans taking care of them. B.fertilizers and pesticides. C.light from the Sun. D.being eaten by livestock
C
200
Lauren was walking in the woods when she found a rotting log. When she looked closely at the log, she saw that a decomposer was working to break down the wood. Which could be the decomposer she saw on the log? A.mushroom B.grass C.mouse D.caterpillar
A
200
Heather had a pot filled with salt water. She could not see the salt inside the water, but she could taste that the water was salty. Heather heated the pot using a stovetop until all of the water evaporated. The bottom of the pot was covered with white salt crystals, but the water had all turned into water vapor that Heather could not see. Which of these is true about the salt left in the pot after the water evaporated? A.The salt is not made of particles because it was invisible when it was dissolved in water. B.The salt particles absorbed the water particles as the water changed into a gas. C.The salt is now made of particles, but it was not made of particles when it was dissolved. D.The salt is made of the same particles as it was before the water evaporated.
D
300
Jacobi used an air pump to inflate a soccer ball. As Jacobi pumped air into the soccer ball, the ball expanded. The expansion of the ball when air was added shows that A.adding air to the ball made the ball weigh less. B.air can change from a gas to a solid. C.air is not matter, so it has no small particles. D.air is a type of matter.
D
300
Which of the following statements is true? A.An object's weight is always less than the sum of the weights of its individual parts. B.An object's weight is always greater than the sum of the weights of its individual parts. C.An object's weight can be greater than or less than the sum of the weights of its individual parts. D.An object's weight is always equal to the sum of the weights of its individual parts.
D
300
Plants get _______ from food in order to live and grow. A.air B.energy C.light D.all of these
B
300
GRASS-->GRASSHOPPER-->SNAKE-->HAWK Study the food chain above. Which of the following organisms does a snake eat? A.a grasshopper B.grass C.a hawk D.all of these
A
300
Theodore places an effervescent tablet that weighs 5.4 grams into a container that has 250 grams of water. He immediately seals the container so that nothing can get in or out. The tablet begins to fizz and tiny bubbles form in the water. How much will the mixture weigh once the tablet completely dissolves in the water? A.244.6 grams B.250.5 grams C.255.4 grams D.250 grams
C
400
Miguel has some sugar cubes and a cup of hot water. Miguel knows that the water and the sugar cubes are types of matter, so they are both made up of tiny particles. Miguel puts a few of the sugar cubes into the hot water. The sugar cubes dissolve and can no longer be seen. What is now true about the sugar? A.The sugar is still made up of the same tiny particles as it was before. B.The sugar is still made up of particles, but they got smaller when they dissolved. C.The sugar is no longer made up of particles because the dissolved sugar does not take up any space. D.The sugar is no longer made up of particles because all of the particles dissolved in the water.
A
400
If a chair were taken apart and separated into piles based on material type, the wood pile would weigh 15 pounds, the plastic pile would weigh 3 pounds, and the metal pile would weigh 3 pounds. How much does the chair weigh when it is put together? A.18 pounds B.21 pounds C.227 pounds D.20 pounds
B
400
Plants need air, water, and light to live. Plants get _______ from the Sun. A.water B.air C.light D.all of these
C
400
Decomposers are organisms that A.use sunlight to produce food. B.feed upon living organisms. C.break down matter from dead plants and animals. D.can only be seen using a microscope.
C
400
The human body needs energy in order to carry out life processes such as breathing. Where does the body get this energy? A.from learning about new things B.from lying in the sun C.from eating food D.from sleeping
C
500
Charlotte is doing a science project to find out what materials complete the circuit shown below to make the bell ring. She closed the circuit with a plastic pen cap and then a wooden craft stick. Why did the bell not ring? A.The plastic and the wood are insulators. B.The plastic and the wood have too much power. C.The plastic and the wood are conductors. D.The plastic and the wood were wet.
A
500
Samantha went to the grocery store and bought some fruit, some meat, a few boxes of cereal, and a few canned items. When Samantha got home from the store, she put the bag on a scale. It weighed 29 lbs. How many pounds of canned items must Samantha have bought, if the bag weighed 1 lb, the fruit weighed 6 lbs, the meat weighed 8 lbs, and the cereal weighed 2 lbs? A.14 lbs B.12 lbs C.13 lbs D.15 lbs
B
500
Stephanie has had a long day. She is tired and wants to go straight to bed. Her mother makes her sit down and eat supper first. After eating, Stephanie no longer feels so tired. Why did eating make Stephanie feel less tired? A.because exercise makes a person more alert B.because food provides energy C.because food contains caffeine D.because it is too early to go to bed
B
500
Which of the following is a way that decomposers help ecosystems? A.They hunt and kill harmful predators like snakes and wolves. B.They release important nutrients into the soil. C.They are the ecosystem's main source of freshwater. D.Decomposers do not help ecosystems.
B
500
During the natural cycle of life that takes place in all ecosystems, plants and animals die. What happens after an organism in an ecosystem dies? A.The body of the organism quickly changes into a gas and becomes part of the air. B.The body of the organism decays and is recycled back into the ecosystem. C.The body of the organism does not change and will stay the same forever. D.The body of the organism quickly turns into a new kind of organism.
B