Nature of Science
Pauline and Manuel are experimenting to find out how far a ball travels when launched from a slingshot. Which of the following would best help share the result of their investigation?
A. writing a procedure for their experiment
B. experimenting with different balls and slingshots
C. recording the distance the ball traveled each time
D. observing the ball as it lands and rolls on the ground
C data should be recorded and used as evidence for conclusions
Rozelle is observing the physical properties of a cotton ball, a foam ball, a lump of clay, and a wad of paper. All of the objects are about the same size. Which of the objects can Rozelle conclude would most likely have the greatest mass?
A. foam ball
B. lump of clay
C. cotton ball
D. wad of paper
B. The others would have much less mass than clay
Haley tests the streak of two mineral samples using a streak plate. Both minerals leave a pale-yellow streak. Which of the following might Haley conclude about the two mineral samples?
A. They both have dull luster.
B. They are very soft minerals.
C. They could be the same mineral.
D. They most likely are the same color.
C. They could be the same minerals
In an investigation, some students examined a flower. They removed the stamen and brushed it against a piece of dark paper to observe pollen that sticks to the paper. Which of the following might be the title of the investigation?
A. How Seeds Germinate
B. Growth of Plant Seedlings
C. Seed Dispersal in Plants
D. Sexual Reproduction in Plants
D. Sexual Reproduction in Plants
Nash wants to investigate the effect of a load on the speed of a toy car down a ramp. He rolls Car A down a ramp for three trials and records the results. Then he puts a 10-gram weight on Car B. He rolls Car B down the ramp for three trials and records the results. He shares his results with classmates. They got different results when they performed an investigation to answer the same question. What is wrong with Nash’s experiment?
A. He does not use measurements.
B. He does not analyze his data.
C. He does not control his variables.
D. He does not publish his results.
C. He does not control his variables
Water is used in many recreational activities. Which of these is an example of a use of the solid form of water in recreation?
A. watering a garden
B. fishing in a lake
C. water skiing
D. snow skiing
D. The others involve liquid water.
The students followed these steps during an investigation:
• Collect five mineral samples
• Scratch each mineral with a nail
• Record observations
Which of the following properties of minerals are the students most likely testing?
A. Why are minerals different colors?
B. Which of five minerals is the hardest?
C. Do all minerals have the same luster?
D. What test do we do to find out the hardness of minerals?
B. Which of five minerals is the hardest
In a forest, there is little growth of plants during winter. What is the main reason this would affect deer in the forest?
A. There would be less food.
B. There would be less water.
C. There would be less shade.
D. There would be less shelter.
A. There would be less food.
Rodrigo is investigating how sunlight affects the growth of plants. He gets two groups of identical plants and labels them Plant Group 1 and Plant Group 2. He puts Plant Group 1 on a sunny windowsill. He puts Plant Group 2 in a dark closet. After one week, he compares the two plants. Which science skill does Rodrigo use to compare the plants?
A. drawing conclusions
B. inferring
C. observing
D. predicting
Answer C is correct because Rodrigo is looking at the plants and stating what he sees. He is making an observation.
Honza rubs a paper clip in one direction with a bar magnet 30 times. The paper clip now attracts steel pins. What happened to the paper clip?
A. It became cold.
B. It became iron.
C. It became heavier.
D. It became magnetized.
D. The paperclip became magnetized.
Carolina visited a national park where she saw a rock formation. Which process most likely formed the shape of this rock?
a. wind weathering the rock
b. earthquakes shifting the rock
c. water freezing in the cracks of rocks
d. waves depositing sediment to form rocks
A. wind weathering the rock
Students in Ms. Quinn’s fourth-grade class are learning about the life cycle of plants. Before beginning the lesson, Ms. Quinn asks students what they already know about plant life cycles and creates a chart of their responses.
Which of the following statements about plant life cycles is true?
A. All Florida plants follow the same life cycle.
B. Ferns and mosses reproduce through seeds.
C. Flowering plants undergo incomplete metamorphosis.
D. Pine trees are an example of nonflowering seed-bearing plants.
D. Pine trees are an example of nonflowering seed-bearing plants.
Emily has been investigating the properties of some rock samples. She concludes that one rock sample is magnetic. Which of the following statements could be evidence in support of her conclusion?
A. The rock has pearly luster.
B. The rock has a grainy texture.
C. The rock attracts iron filings.
D. The rock has layers of sediment.
Answer is C because the rock attracting iron filings shows that the rock has magnetic properties.
Allen’s family is making dinner on a camping trip. Each person in his family helps get dinner ready.
His mom starts a campfire.
Allen mixes lemonade mix and water.
His sister cuts up vegetables for a salad.
His dad melts butter in a frying pan.
Which person’s activity results in a chemical change?
A. Mom
B. Allen
C. Sister
D. Dad
A. Mom
Kwan is doing a report in science class about the nonrenewable resources in Florida. Which of the following resources can Kwan include in his report?
A. sunlight, water, wind
B. limestone, oil, phosphate
C. fish, trees, limestone
D. citrus fruits, sugarcane
B. Limestone, oil, phosphate
Jamal is studying hummingbirds. He made the following notes:
1. Hummingbirds have rapidly moving wings.
2. Hummingbirds are attracted to red flowers.
3. Hummingbirds are the smallest type of bird.
4. Hummingbirds are about as large as a bumblebee.
Which of Jamal’s statements could Jamal test by setting up an experiment?
A. Statement 1
B. Statement 2
C. Statement 3
D. Statement 4
B. Statement 2
The students in Ms. Chernov’s science class are learning how wind energy can move objects. Dane writes the following notes. Which of Dane’s notes about energy is NOT correct?
A. Moving air is a source of energy.
B. Wind turbines use wind energy.
C. Wind energy can be used to generate electricity.
D. Wind energy produces more electricity than other sources.
D. Wind energy produces more electricity than other sources.
Jackson knows that stars form patterns in the sky that look like pictures of animals
or people. How can Jackson describe these patterns from season to season?
A. Star patterns appear to stay in the same place in the sky.
B. Star patterns appear to change position in the sky.
C. Star patterns become brighter in summer.
D. Star patterns change their shape.
B. Star patterns appear to change position in the sky