Energy
Marco’s science class is studying different types of energy, such as light, heat, and sound. He tells his family about this unit of study. What is a definition of the word energy?
The ability to cause motion or create change
What are ways you can sort objects?
Size, Shape, Texture, Weight, Tempurature
Stars are classified by their characteristics. What is one way to classify stars?
possible answers: color, brightness, size
Martin puts a seedling plant in a glass of blue water. He knows the flower will absorb the water. In what order will the water travel through the parts of the plant?
Roots, Stem, Leaves
What is gravity?
A force that pulls objects towards eachother
What is an example of kinetic energy?
Answers may vary
Books have physical properties. What are two physical properties of a school textbook?
Options: Rectangular and Hard
The sun is a star that gives off energy. Which forms of the sun’s energy reach Earth?
Light and Heat
The zebra longwing butterfly is the state insect of Florida. Why is this insect classified as an invertebrate?
It does not have a backbone
Why can birds fly and not fall to ground?
Birds use a force to overcome gravity
Shania loves to dance. She turns on her radio to find some music. Which statement explains how the radio uses energy?
Electrical energy turns into sound energy
Texture is one physical property. A tennis ball and a baseball have different textures. What is texture?
How something feels to touch
An astronaut in space can see that planets, moons, stars, and Earth all lit up in the sky.
What object most likely makes its own light and heat?
Star
Hooded seals live on drifting ice packs. Which of the following types of animal is a seal?
Mammal
Lola is at the grocery store. She pulls an apple from the bottom of the pile. All the other apples fall to the ground. What force brought the apples down?
Gravity pulling on all of the apples
What sources of energy does a microwave use?
Electrical, heat, and light energy
Dina knows that water melts and freezes at the same temperature: 0 °C. She knows that it boils at 100 °C. Which is the most likely temperature of a glass of ice water?
colder than 0 °C
The sun is the nearest star to Earth. Stars are objects that give off energy. Some of the sun’s energy reaches Earth. This energy makes it possible for living things to survive. What form of energy from the sun do plants use to make their own food?
Light energy
Dante is studying the plant part in which food is made. Which plant part is Dante studying?
The plant's leaves
The moon’s gravity is not as strong as Earth’s gravity. What is different about an object on the moon?
The object weighs less on the moon
Sara observes different types of energy on the playground. She sees a falling leaf and a bouncing ball. She also sees a child swinging and child at the top of a slide. Which activity has only potential energy?
A child sitting at the top of the slide
A glass is about half full of milk. Dan wants to measure the volume of the milk in the glass. What must Dan do?
Pour the milk into a graduated cylinder to find the volume.
Some groups of stars seem to form a picture in the sky. These star patterns can look different when viewed with a telescope than when viewed without a telescope. Which is a way that a star pattern could look different when viewed through a telescope?
It could have more stars
Melissa studies the leaves of a fern plant. She observes tiny, brown bumps on the underside of the leaves. Which of the following items does Melissa observe?
Spores
Why are rocket boosters needed to send the shuttle into space?
They produce force to overcome gravity until the rocket gets far enough from Earth not to get pulled back down.