Louisiana Science Leap

Front

Which statement describes a way that energy is transferred in the blender? The blender’s kinetic energy changes directly into light energy. The blender’s electrical energy changes directly into sound energy. The blender’s heat energy changes into both mechanical and sound energy. The blender’s mechanical energy changes into both heat and sound energy.

Back

The blender’s mechanical energy changes into both heat and sound energy.

Front

What happens to the energy of the softball when it is hit by the bat? Options: There is a transfer of energy from the bat to the softball, increasing the energy of the softball’s movement., When the bat hits the ball, energy transfers from the softball to the bat. , There is a transfer of energy from the softball to the bat, increasing the energy of the bat’s movement., The softball is still moving, so there is no transfer of energy to or from the softball.

Back

There is a transfer of energy from the bat to the softball, increasing the energy of the softball’s movement.

Front

Which claim is supported by the information about armadillos? Armadillos use their sense of touch to hide from predators. Armadillos use their sense of smell to find food. Armadillos use their sense of hearing to find food that is far away. Armadillos use their sense of sight to see predators that are nearby.

Back

Armadillos use their sense of smell to find food.

Front

Based on the students’ data, which statement describes the material that will help prevent the greatest amount of erosion? Options: Add netting, because it kept the greatest amount of soil in the bottle.; Add sand, because some of it moved into the bowl along with the soil.; Add rocks, because only a few were needed in order to keep a lot of soil in the bottle.; Add no material, because having only soil caused the greatest amount of soil to move into the bowl.

Back

Add netting, because it kept the greatest amount of soil in the bottle.

Front

Which model shows the path of light that allows a bear to see its food during the day?

Back

Front

Which sentence best explains what causes a bear’s eyes to appear to glow at night?

Back

Extra light captured by the bear’s eyes is reflected back out of the eyes.

Front

Which statement supports the answer to Part A? Options: Bears have paws that can identify textures, but deer do not. Deer have tongues that detect sweetness, but bears do not. Deer have eyes that see almost all around them, but bears have eyes that see mostly in front of them. Bears have small ears that can turn in different directions, but deer must turn their heads to hear sounds.

Back

Deer have eyes that see almost all around them, but bears have eyes that see mostly in front of them.

Front

Camel fossils are not found in the top layers of soil near Louisiana’s rivers, but they are found in areas away from rivers. Which statement best explains why camel fossils are not found near rivers in Louisiana?

Back

The soil around the rivers is not old enough to have camel fossils.

Front

A fossil is found in the top layer of soil in Region Y. To which era does this fossil most likely belong?

Back

Cenozoic

Front

A student claims that the top layer of soil in Louisiana is young compared with the land in other states. Which statement best supports this claim?
Options: Earthquakes cause land to shift and make new soil. , Most of the soil found in Louisiana is from the Mesozoic era. , Rivers deposit younger soil on top of older soil as they move. , Fossils from the Paleozoic era are found in gravel near rivers.

Back

Rivers deposit younger soil on top of older soil as they move.