SELETNOS
SKELETONS
We have been ___________ the area carefully, paying attention to every little thing.
looking around
Our paleontologist teacher (look up) similar bones on the internet.
Our paleontologist teacher has looked up similar bones on the internet.
Have you (be) brushing that skeleton?
Have you been brushing that skeleton?
Scientists (discover) an amazing dinosaur fossil in the dry desert. Researchers (dig) at this site for three long months.
Scientists have discovered an amazing dinosaur fossil in the dry desert. Researchers have been digging at this site for three long months.
GOLTOLPENAIST
PALEONTOLOGIST
Yesterday, we finally ____________ a strange-shaped bone sticking out of the dirt!
came across
What (find) today?
What have you found today?
Find which part is wrong and correct it!
Was he been trying to find out facts about the site?
Has he been trying to find out about the site?
Today, the paleontologists (find) a rare dinosaur fossil hidden deep inside the sandstone layer. The lead researcher (carefully, clean) the fragile bone since early this morning.
Today, the paleontologists have found a rare dinosaur fossil hidden deep inside the sandstone layer. The lead researcher has been carefully cleaning the fragile bone since early this morning.
While her teammates continue to ______ around the ________, Lena uses her notebook to write down everything they find.
dig, site
Our paleontologist teacher has _________ similar bones on the internet.
looked up
I've _______ (find) a strange plant fossil. Look, I found it only ten minutes ago!
I've just found a strange plant fossil. Look, I found it only ten minutes ago!
We (look around) the dig _____ three days.
We have been looking around the dig for three days.
Since yesterday, they (puzzle over) what kind of creature it could belong to. Lena (figure out) that the bone might be part of a rare dinosaur skeleton.
Since yesterday, they have been puzzling over what kind of creature it could belong to. Lena has just figured out that the bone might be part of a rare dinosaur skeleton.
A _______ is the remains or evidences of an ancient organism.
fossils
We have been ___________ it since then, trying to understand what kind of creature it was.
puzzling around
Sorry, Miss. I (finish) my fossil report ______.
That's okay, but please try to finish your projects on time from now on.
Sorry, Miss. I haven't finished my fossil report yet.
That's okay, but please try to finish your projects on time from now on.
Scientist Jane (work) at the rocky cliff for three weeks. She (search for) hidden treasures from the past. Every morning, her team (dig through) layers of hard stone and dust.
Scientist Jane has been working at the rocky cliff for three weeks. She has been searching for hidden treasures from the past. Every morning, her team has been digging through layers of hard stone and dust.
Scientists (spend) three weeks in the hot desert. They (dig) in the dry dirt for a long time. Today, a clever researcher has found a rare dinosaur bone. This ancient fossil (rest) hidden in the rock for millions of years.
Scientists have spent three weeks in the hot desert. They have been digging in the dry dirt for a long time. Today, a clever researcher has found a rare dinosaur bone. This ancient fossil has rested hidden in the rock for millions of years.
During a delicate excavation, paleontologists need to safely clear away loose dust, sand, and fine sediment from fragile fossil surfaces without scratching or fracturing the bone. What soft, delicate hand tool is primarily used for this precise task?
brush
Just yesterday, they _________ something extraordinary-a large bone sticking out of the dirt. Since then, they have been __________ what kind of creature it could belong to. Lena has just __________ that the bone might be part of a rare dinosaur skeleton. She's already __________ some information in her fossil guidebook and believes it could be a new species!
came across, puzzling over, figured out, looked up
Mom, look! I ________ writing my article about dinosaurs!
You ______ it? Cool! I thought you were going to finish it later!
Mom, look! I have finished writing my article about dinosaurs!
You have already finished it? Cool! I thought you were going to finish it later!
__________ this bone's origin ______?
No, I ________. This is so much harder than I thought.
Have you figured out this bone's origin yet?
No, I haven't. This is so much harder than I thought.
They __________ the full skeleton yet, but they're hopeful. Everyone __________, even in the hot sun.
They haven't found the full skeleton yet, but they're hopeful. Everyone has been working hard, even in the hot sun.