What do scientists do?
What do ALL scientists study?
a. living things
b. the natural world
c. things found in outer space
b. the natural world
During Carmela's investigation, her plant grew 1 inch each week for 4 weeks. When she shows her classmates the drawings of her plant's changes, what skill is she using?
a. communication
b. inference
c. observation
a. communication
Kiera is planning an investigation of fossils that scientists have found in the town where she lives. Which would be her best source of information?
a. science dictionary
b. book about dinosaurs
c. local science museum
c. local science museum
Devon, Marin, and Renee make muffins and wonder whose muffins have the greatest diameter. They use different units of measurement: Devon uses a ruler, Marin uses jelly beans, and Renee uses coins.. Which method uses a standard measure?
a. ruler
b. jelly beans
c. coins
a. ruler
Thad wonders how a tadpole's body changes as it grows. What model would be the most useful for Thad to observe?
a. a set of plastic models of two different types of frogs
b. a computer animation that follows a frog through its life cycle
c. a photograph of a tadpole and a photograph of a fully grown frog
b. a computer animation that follows a frog through its life cycle
Kim puts a cup of water and a cup of cooking oil in the freezer. Every 30 minutes she checks the cups. She records when the liquid in each cup freezes. What is Kim investigating?
a. which liquid freezes faster
b. which liquid tastes better frozen
c. which liquid melts faster
a. which liquid freezes faster
Sarah is studying water. She thinks that adding salt to water may make it freeze at a higher temperature. Which word describes her statement?
a. conclusion
b. hypothesis
c. investigation
b. hypothesis
Michi places a beaker of water in sunlight and measures how the water temperature changes. Which unit of measurement will Michi use to record his data?
a. grams
b. centimeters
c. degrees Celsius
c. degrees Celsius
Ms. Nguyen's science class is studying measurement. She asks the students to measure the distance around a basketball. What tool should the students use?
a. ruler
b. tape measure
c. toothpicks
b. tape measure
A scientist plans to build a model of a coral reef. What must the scientist do when building the model?
a. include the most important parts
b. use a computer to build the model
c. build the model so that it can be taken apart
a. include the most important parts
Kwan asks people in his class to report how many times per week they recycle. He gets two friends to gather information from their classes, too. What is true about Kwan's investigation?
a. it involves collaboration
b. it explains why people recycle
c. it produces results that don't change
a. it involves collaboration
Emily grew one plant on the window sill. She grew another plant inside a black plastic bag. Before she started, she said thought the plant on the window sill would do better. What skill was Emily using?
a. predicting
b. communicating
c. classifying
a. predicting
Students in Zoe's class measure the time it takes a toy car to move along a track. Why should Zoe compare her data to other students' data?
a. to choose the best time to record
b. to decide why the car moved slowly
c. to see if her data matches other students' data
Four classmates measure the weight of the same sample of rock salt. Which measurement is most exact?
a. 1 kg
b. 0.89 kg
c. 0.894 kg
c. 0.894 kg
Kate plans how to build a garden. She imagines where the garden will be, then draws a picture of a garden. What is Kate doing?
a. creating a two-dimensional model
b. creating a three-dimensional model
c. creating a computer model
a. creating a two-dimensional model
Franz wants to investigate moon craters. He drips water into a shallow pan of sand. He observes that water drops make different size dents in the sand. What type of experiment is Franz conducting?
a. classifying
b. directly studying
c. modeling
c. modeling
Nicholas wants to add more blueberries to a muffin recipe because he thinks it'll taste better. What part of the inquiry process are the BLUEBERRIES?
a. question
b. hypothesis
c. variable
c. variable
Lataya chooses one leaf from each tree around the school. What would be the best way to find out which leaf has the greatest mass?
a. hold the leaves, two at a time, in her hands.
b. find the mass of each leaf in a pan balance
c. hang all of the leaves together from a spring scale
b. find the mass of each leaf in a pan balance
Ms. Ybarra's class is studying how corn plants grow. She asks students to find ways to measure a plant. Which method of measurement is based on a nonstandard tool?
a. ruler to measure the length of the plant
b. scale to weigh the amount of corn
c. crayons to record how green the plant's leaves are
c. crayons
Vanessa reads that a bird's bones are hollow, but strong. Vanessa wants to build a three-dimensional model of a bird. What material would be her best choice to use for bones in her model?
a. toothpicks
b. clay
c. straws
c. straws
A scientist looks at a graph of the results of his experiment. He draws a conclusion about his results. What is one way the scientist uses his CONCLUSION?
a. to decide whether he should share his results with others
b. to decide whether his hypothesis is correct
c. to decide whether he should make a different conclusion
b. to decide whether his hypothesis is correct
Connor and Dylan studied how far two toy cars travel. Each student pulled a car back and let it go. Then they measured how far each car traveled before it stopped. What part of the inquiry process did the students do?
a. made a prediction
b. drew a conclusion
c. conducted an investigation
c. conducted an investigation
Shawna is studying two types of fish for a project. She draws picture of the fish. Which is a scientific observation she could make about them?
a. one fish has a funny shape
b. people will laugh when they see the picture
c. the fish has stripes around its head, body and tail
c. the fish has stripes around its head, body and tail
Myrna is making a large batch of chili. The recipe calls for 2-kg of ground turkey. She doesn't have a scale - how can she make sure that she's using the right amount of turkey?
a. fill a 4 quart sauce pan with turkey
b. compare the weight of the turkey to 3 large apples
c. compare the weight of the turkey to a 2-kg package of flour
c. compare the weight of the turkey to a 2-kg package of flour
a. Claude's model does not show the sides of the walls in the classroom.
b. Only Shayne's model shows the floor of the classroom.
c. Only Shayne's model shows the length and width of the classroom.
a. Claude's model does not show the sides of the walls in the classroom.